This Boulder, Colorado remodel by fuentesdesign demonstrates the possibility of renewal in American suburbs, and Passive House design principles. Once an inefficient single story 1,000 square-foot ranch house with a forced air furnace, has been transformed into a two-story, solar powered 2500 square-foot three bedroom home ready for the next generation. The new design for the home is modern with a sustainable theme, incorporating a palette of natural materials including; reclaimed wood finishes, FSC-certified pine Zola windows and doors, and natural earth and lime plasters that soften the interior and crisp contemporary exterior with a flavor of the west. A Ninety-percent efficient energy recovery fresh air ventilation system provides constant filtered fresh air to every room. The existing interior brick was removed and replaced with insulation. The remaining heating and cooling loads are easily met with the highest degree of comfort via a mini-split heat pump, the peak heat load has been cut by a factor of 4, despite the house doubling in size. During the coldest part of the Colorado winter, a wood stove for ambiance and low carbon back up heat creates a special place in both the living and kitchen area, and upstairs loft. This ultra energy efficient home relies on extremely high levels of insulation, air-tight detailing and construction, and the implementation of high performance, custom made European windows and doors by Zola Windows. Zola’s ThermoPlus Clad line, which boasts R-11 triple glazing and is thermally broken with a layer of patented German Purenit®, was selected for the project. These windows also provide a seamless indoor/outdoor connection, with 9′ wide folding doors from the dining area and a matching 9′ wide custom countertop folding window that opens the kitchen up to a grassy court where mature trees provide shade and extend the living space during the summer months. With air-tight construction, this home meets the Passive House Retrofit (EnerPHit) air-tightness standard of

When a world class sailing champion approached us to design a Newport home for his family, with lodging for his sailing crew, we set out to create a clean, light-filled modern home that would integrate with the natural surroundings of the waterfront property, and respect the character of the historic district. Our approach was to make the marine landscape an integral feature throughout the home. One hundred eighty degree views of the ocean from the top floors are the result of the pinwheel massing. The home is designed as an extension of the curvilinear approach to the property through the woods and reflects the gentle undulating waterline of the adjacent saltwater marsh. Floodplain regulations dictated that the primary occupied spaces be located significantly above grade; accordingly, we designed the first and second floors on a stone “plinth” above a walk-out basement with ample storage for sailing equipment. The curved stone base slopes to grade and houses the shallow entry stair, while the same stone clads the interior’s vertical core to the roof, along which the wood, glass and stainless steel stair ascends to the upper level. One critical programmatic requirement was enough sleeping space for the sailing crew, and informal party spaces for the end of race-day gatherings. The private master suite is situated on one side of the public central volume, giving the homeowners views of approaching visitors. A “bedroom bar,” designed to accommodate a full house of guests, emerges from the other side of the central volume, and serves as a backdrop for the infinity pool and the cove beyond. Also essential to the design process was ecological sensitivity and stewardship. The wetlands of the adjacent saltwater marsh were designed to be restored; an extensive geo-thermal heating and cooling system was implemented; low carbon footprint materials and permeable surfaces were used where possible. Native and non-invasive plant species were utilized in the landscape. The abundance of windows and glass railings maximize views of the landscape, and, in deference to the adjacent bird sanctuary, bird-friendly glazing was used throughout. Photo: Michael Moran/OTTO Photography

Photo credit: Scott McDonald @ Hedrich Blessing 7RR-Ecohome: The design objective was to build a house for a couple recently married who both had kids from previous marriages. How to bridge two families together? The design looks forward in terms of how people live today. The home is an experiment in transparency and solid form; removing borders and edges from outside to inside the house, and to really depict “flowing and endless space”. The house floor plan is derived by pushing and pulling the house’s form to maximize the backyard and minimize the public front yard while welcoming the sun in key rooms by rotating the house 45-degrees to true north. The angular form of the house is a result of the family’s program, the zoning rules, the lot’s attributes, and the sun’s path. We wanted to construct a house that is smart and efficient in terms of construction and energy, both in terms of the building and the user. We could tell a story of how the house is built in terms of the constructability, structure and enclosure, with a nod to Japanese wood construction in the method in which the siding is installed and the exposed interior beams are placed in the double height space. We engineered the house to be smart which not only looks modern but acts modern; every aspect of user control is simplified to a digital touch button, whether lights, shades, blinds, HVAC, communication, audio, video, or security. We developed a planning module based on a 6-foot square room size and a 6-foot wide connector called an interstitial space for hallways, bathrooms, stairs and mechanical, which keeps the rooms pure and uncluttered. The house is 6,200 SF of livable space, plus garage and basement gallery for a total of 9,200 SF. A large formal foyer celebrates the entry and opens up to the living, dining, kitchen and family rooms all focused on the rear garden. The east side of the second floor is the Master wing and a center bridge connects it to the kid’s wing on the west. Second floor terraces and sunscreens provide views and shade in this suburban setting. The playful mathematical grid of the house in the x, y and z axis also extends into the layout of the trees and hard-scapes, all centered on a suburban one-acre lot. Many green attributes were designed into the home; Ipe wood sunscreens and window shades block out unwanted solar gain in summer, but allow winter sun in. Patio door and operable windows provide ample opportunity for natural ventilation throughout the open floor plan. Minimal windows on east and west sides to reduce heat loss in winter and unwanted gains in summer. Open floor plan and large window expanse reduces lighting demands and maximizes available daylight. Skylights provide natural light to the basement rooms. Durable, low-maintenance exterior materials include stone, ipe wood siding and decking, and concrete roof pavers. Design is based on a 2' planning grid to minimize construction waste. Basement foundation walls and slab are highly insulated. FSC-certified walnut wood flooring was used. Light colored concrete roof pavers to reduce cooling loads by as much as 15%. 2x6 framing allows for more insulation and energy savings. Super efficient windows have low-E argon gas filled units, and thermally insulated aluminum frames. Permeable brick and stone pavers reduce the site’s storm-water runoff. Countertops use recycled composite materials. Energy-Star rated furnaces and smart thermostats are located throughout the house to minimize duct runs and avoid energy loss. Energy-Star rated boiler that heats up both radiant floors and domestic hot water. Low-flow toilets and plumbing fixtures are used to conserve water usage. No VOC finish options and direct venting fireplaces maintain a high interior air quality. Smart home system controls lighting, HVAC, and shades to better manage energy use. Plumbing runs through interior walls reducing possibilities of heat loss and freezing problems. A large food pantry was placed next to kitchen to reduce trips to the grocery store. Home office reduces need for automobile transit and associated CO2 footprint. Plan allows for aging in place, with guest suite than can become the master suite, with no need to move as family members mature.

When a world class sailing champion approached us to design a Newport home for his family, with lodging for his sailing crew, we set out to create a clean, light-filled modern home that would integrate with the natural surroundings of the waterfront property, and respect the character of the historic district. Our approach was to make the marine landscape an integral feature throughout the home. One hundred eighty degree views of the ocean from the top floors are the result of the pinwheel massing. The home is designed as an extension of the curvilinear approach to the property through the woods and reflects the gentle undulating waterline of the adjacent saltwater marsh. Floodplain regulations dictated that the primary occupied spaces be located significantly above grade; accordingly, we designed the first and second floors on a stone “plinth” above a walk-out basement with ample storage for sailing equipment. The curved stone base slopes to grade and houses the shallow entry stair, while the same stone clads the interior’s vertical core to the roof, along which the wood, glass and stainless steel stair ascends to the upper level. One critical programmatic requirement was enough sleeping space for the sailing crew, and informal party spaces for the end of race-day gatherings. The private master suite is situated on one side of the public central volume, giving the homeowners views of approaching visitors. A “bedroom bar,” designed to accommodate a full house of guests, emerges from the other side of the central volume, and serves as a backdrop for the infinity pool and the cove beyond. Also essential to the design process was ecological sensitivity and stewardship. The wetlands of the adjacent saltwater marsh were designed to be restored; an extensive geo-thermal heating and cooling system was implemented; low carbon footprint materials and permeable surfaces were used where possible. Native and non-invasive plant species were utilized in the landscape. The abundance of windows and glass railings maximize views of the landscape, and, in deference to the adjacent bird sanctuary, bird-friendly glazing was used throughout. Photo: Michael Moran/OTTO Photography

Photo credit: Scott McDonald @ Hedrich Blessing 7RR-Ecohome: The design objective was to build a house for a couple recently married who both had kids from previous marriages. How to bridge two families together? The design looks forward in terms of how people live today. The home is an experiment in transparency and solid form; removing borders and edges from outside to inside the house, and to really depict “flowing and endless space”. The house floor plan is derived by pushing and pulling the house’s form to maximize the backyard and minimize the public front yard while welcoming the sun in key rooms by rotating the house 45-degrees to true north. The angular form of the house is a result of the family’s program, the zoning rules, the lot’s attributes, and the sun’s path. We wanted to construct a house that is smart and efficient in terms of construction and energy, both in terms of the building and the user. We could tell a story of how the house is built in terms of the constructability, structure and enclosure, with a nod to Japanese wood construction in the method in which the siding is installed and the exposed interior beams are placed in the double height space. We engineered the house to be smart which not only looks modern but acts modern; every aspect of user control is simplified to a digital touch button, whether lights, shades, blinds, HVAC, communication, audio, video, or security. We developed a planning module based on a 6-foot square room size and a 6-foot wide connector called an interstitial space for hallways, bathrooms, stairs and mechanical, which keeps the rooms pure and uncluttered. The house is 6,200 SF of livable space, plus garage and basement gallery for a total of 9,200 SF. A large formal foyer celebrates the entry and opens up to the living, dining, kitchen and family rooms all focused on the rear garden. The east side of the second floor is the Master wing and a center bridge connects it to the kid’s wing on the west. Second floor terraces and sunscreens provide views and shade in this suburban setting. The playful mathematical grid of the house in the x, y and z axis also extends into the layout of the trees and hard-scapes, all centered on a suburban one-acre lot. Many green attributes were designed into the home; Ipe wood sunscreens and window shades block out unwanted solar gain in summer, but allow winter sun in. Patio door and operable windows provide ample opportunity for natural ventilation throughout the open floor plan. Minimal windows on east and west sides to reduce heat loss in winter and unwanted gains in summer. Open floor plan and large window expanse reduces lighting demands and maximizes available daylight. Skylights provide natural light to the basement rooms. Durable, low-maintenance exterior materials include stone, ipe wood siding and decking, and concrete roof pavers. Design is based on a 2' planning grid to minimize construction waste. Basement foundation walls and slab are highly insulated. FSC-certified walnut wood flooring was used. Light colored concrete roof pavers to reduce cooling loads by as much as 15%. 2x6 framing allows for more insulation and energy savings. Super efficient windows have low-E argon gas filled units, and thermally insulated aluminum frames. Permeable brick and stone pavers reduce the site’s storm-water runoff. Countertops use recycled composite materials. Energy-Star rated furnaces and smart thermostats are located throughout the house to minimize duct runs and avoid energy loss. Energy-Star rated boiler that heats up both radiant floors and domestic hot water. Low-flow toilets and plumbing fixtures are used to conserve water usage. No VOC finish options and direct venting fireplaces maintain a high interior air quality. Smart home system controls lighting, HVAC, and shades to better manage energy use. Plumbing runs through interior walls reducing possibilities of heat loss and freezing problems. A large food pantry was placed next to kitchen to reduce trips to the grocery store. Home office reduces need for automobile transit and associated CO2 footprint. Plan allows for aging in place, with guest suite than can become the master suite, with no need to move as family members mature.

This beautiful Craftsman style Passive House has a carbon footprint 20% that of a typically built home in Oregon. Its 12-in. thick walls with cork insulation, ultra-high efficiency windows and doors, solar panels, heat pump hot water, Energy Star appliances, fresh air intake unit, and natural daylighting keep its utility bills exceptionally low. Jen G. Pywell

Because they’re protected between glass, Enclosed blinds retain their ‘like new’ look over time and with repeated use. They stay clean and free of damage from kids, pets, and anything else that might come into contact with your doorglass. No dusting, no tangled or dangling cords, and no crimped or dented blinds. The thermally sealed doorglass can be used in doors to meet ENERGY STAR criteria, giving you energy savings and long-term value, too. They reduce heat loss in the winter and solar heat gain in the summer. Our offering includes energy-saving Low-E glass options and impact-resistant, triple-glazed doorglass that safeguards against high winds, offers sound suppression, and reduces heat transmission. With our Light-Touch Blinds, a single-touch control lets you choose the perfect light or privacy level. The ergonomically considered design places the fingertip control within easy reach to tilt, raise, and lower blinds the entire length of the doorglass—with only the slightest movement required. Privacy channels on each side of the doorglass eliminate light gaps when the blinds are closed—no streetlight shadows or sunlight glare. Easy to clean, no dusting required. Light and Privacy Control. Four colors of Enclosed Blinds: Sand, Espresso, Slate Gray, and Silver Moon. With matching privacy channels and operators, the colors of your entry door blinds will always coordinate with your décor.

Set in Montana's tranquil Shields River Valley, the Shilo Ranch Compound is a collection of structures that were specifically built on a relatively smaller scale, to maximize efficiency. The main house has two bedrooms, a living area, dining and kitchen, bath and adjacent greenhouse, while two guest homes within the compound can sleep a total of 12 friends and family. There's also a common gathering hall, for dinners, games, and time together. The overall feel here is of sophisticated simplicity, with plaster walls, concrete and wood floors, and weathered boards for exteriors. The placement of each building was considered closely when envisioning how people would move through the property, based on anticipated needs and interests. Sustainability and consumption was also taken into consideration, as evidenced by the photovoltaic panels on roof of the garage, and the capability to shut down any of the compound's buildings when not in use.

This LEED Platinum certified house reflects the homeowner's desire for an exceptionally healthy and comfortable living environment, within a traditional neighborhood. INFILL SITE. The family, who moved from another area of Wellesley, sought out this property to be within walking distance of the high school and downtown area. An existing structure on the tight lot was removed to make way for the new home. 84% of the construction waste, from both the previous structure and the new home, was diverted from a landfill. ZED designed to preserve the existing mature trees on the perimeter of the property to minimize site impacts, and to maintain the character of the neighborhood as well as privacy on the site. EXTERIOR EXPRESSION. The street facade of the home relates to the local New England vernacular. The rear uses contemporary language, a nod to the family’s Californian roots, to incorporate a roof deck, solar panels, outdoor living space, and the backyard swimming pool. ZED’s careful planning avoided to the need to face the garage doors towards the street, a common syndrome of a narrow lot. THOUGHTFUL SPACE. Homes with dual entries can often result in duplicate and unused spaces. In this home, the everyday and formal entry areas are one and the same; the front and garage doors share the entry program of coat closets, mudroom storage with bench for removing your shoes, and a laundry room with generous closets for the children's sporting equipment. The entry area leads directly to the living space, encompassing the kitchen, dining and sitting area areas in an L-shaped open plan arrangement. The kitchen is placed at the south-west corner of the space to allow for a strong connection to the dining, sitting and outdoor living spaces. A fire pit on the deck satisfies the family’s desire for an open flame while a sealed gas fireplace is used indoors - ZED’s preference after omitting gas burning appliances completely from an airtight home. A small study, with a window seat, is conveniently located just off of the living space. A first floor guest bedroom includes an accessible bathroom for aging visitors and can be used as a master suite to accommodate aging in place. HEALTHY LIVING. The client requested a home that was easy to clean and would provide a respite from seasonal allergies and common contaminants that are found in many indoor spaces. ZED selected easy to clean solid surface flooring throughout, provided ample space for cleaning supplies on each floor, and designed a mechanical system with ventilation that provides a constant supply of fresh outdoor air. ZED selected durable materials, finishes, cabinetry, and casework with low or no volatile organic compounds (VOCs) and no added urea formaldehyde. YEAR-ROUND COMFORT. The home is super insulated and air-tight, paired with high performance triple-paned windows, to ensure it is draft-free throughout the winter (even when in front of the large windows and doors). ZED designed a right-sized heating and cooling system to pair with the thermally improved building enclosure to ensure year-round comfort. The glazing on the home maximizes passive solar gains, and facilitates cross ventilation and daylighting. ENERGY EFFICIENT. As one of the most energy efficient houses built to date in Wellesley, the home highlights a practical solution for Massachusetts. First, the building enclosure reduces the largest energy requirement for typical houses (heating). Super-insulation, exceptional air sealing, a thermally broken wall assembly, triple pane windows, and passive solar gain combine for a sizable heating load reduction. Second, within the house only efficient systems consume energy. These include an air source heat pump for heating & cooling, a heat pump hot water heater, LED lighting, energy recovery ventilation, and high efficiency appliances. Lastly, photovoltaics provide renewable energy help offset energy consumption. The result is an 89% reduction in energy use compared to a similar brand new home built to code requirements. RESILIENT. The home will fare well in extreme weather events. During a winter power outage, heat loss will be very slow due to the super-insulated and airtight envelope– taking multiple days to drop to 60 degrees even with no heat source. An engineered drainage system, paired with careful the detailing of the foundation, will help to keep the finished basement dry. A generator will provide full operation of the all-electric house during a power outage. OVERALL. The home is a reflection of the family goals and an expression of their values, beautifully enabling health, comfort, safety, resilience, and utility, all while respecting the planet. ZED - Architect & Mechanical Designer Bevilacqua Builders Inc - Contractor Creative Land & Water Engineering - Civil Engineering Barbara Peterson Landscape - Landscape Design Nest & Company - Interior Furnishings Eric Roth Photography - Photography

This LEED Platinum certified house reflects the homeowner's desire for an exceptionally healthy and comfortable living environment, within a traditional neighborhood. INFILL SITE. The family, who moved from another area of Wellesley, sought out this property to be within walking distance of the high school and downtown area. An existing structure on the tight lot was removed to make way for the new home. 84% of the construction waste, from both the previous structure and the new home, was diverted from a landfill. ZED designed to preserve the existing mature trees on the perimeter of the property to minimize site impacts, and to maintain the character of the neighborhood as well as privacy on the site. EXTERIOR EXPRESSION. The street facade of the home relates to the local New England vernacular. The rear uses contemporary language, a nod to the family’s Californian roots, to incorporate a roof deck, solar panels, outdoor living space, and the backyard swimming pool. ZED’s careful planning avoided to the need to face the garage doors towards the street, a common syndrome of a narrow lot. THOUGHTFUL SPACE. Homes with dual entries can often result in duplicate and unused spaces. In this home, the everyday and formal entry areas are one and the same; the front and garage doors share the entry program of coat closets, mudroom storage with bench for removing your shoes, and a laundry room with generous closets for the children's sporting equipment. The entry area leads directly to the living space, encompassing the kitchen, dining and sitting area areas in an L-shaped open plan arrangement. The kitchen is placed at the south-west corner of the space to allow for a strong connection to the dining, sitting and outdoor living spaces. A fire pit on the deck satisfies the family’s desire for an open flame while a sealed gas fireplace is used indoors - ZED’s preference after omitting gas burning appliances completely from an airtight home. A small study, with a window seat, is conveniently located just off of the living space. A first floor guest bedroom includes an accessible bathroom for aging visitors and can be used as a master suite to accommodate aging in place. HEALTHY LIVING. The client requested a home that was easy to clean and would provide a respite from seasonal allergies and common contaminants that are found in many indoor spaces. ZED selected easy to clean solid surface flooring throughout, provided ample space for cleaning supplies on each floor, and designed a mechanical system with ventilation that provides a constant supply of fresh outdoor air. ZED selected durable materials, finishes, cabinetry, and casework with low or no volatile organic compounds (VOCs) and no added urea formaldehyde. YEAR-ROUND COMFORT. The home is super insulated and air-tight, paired with high performance triple-paned windows, to ensure it is draft-free throughout the winter (even when in front of the large windows and doors). ZED designed a right-sized heating and cooling system to pair with the thermally improved building enclosure to ensure year-round comfort. The glazing on the home maximizes passive solar gains, and facilitates cross ventilation and daylighting. ENERGY EFFICIENT. As one of the most energy efficient houses built to date in Wellesley, the home highlights a practical solution for Massachusetts. First, the building enclosure reduces the largest energy requirement for typical houses (heating). Super-insulation, exceptional air sealing, a thermally broken wall assembly, triple pane windows, and passive solar gain combine for a sizable heating load reduction. Second, within the house only efficient systems consume energy. These include an air source heat pump for heating & cooling, a heat pump hot water heater, LED lighting, energy recovery ventilation, and high efficiency appliances. Lastly, photovoltaics provide renewable energy help offset energy consumption. The result is an 89% reduction in energy use compared to a similar brand new home built to code requirements. RESILIENT. The home will fare well in extreme weather events. During a winter power outage, heat loss will be very slow due to the super-insulated and airtight envelope– taking multiple days to drop to 60 degrees even with no heat source. An engineered drainage system, paired with careful the detailing of the foundation, will help to keep the finished basement dry. A generator will provide full operation of the all-electric house during a power outage. OVERALL. The home is a reflection of the family goals and an expression of their values, beautifully enabling health, comfort, safety, resilience, and utility, all while respecting the planet. ZED - Architect & Mechanical Designer Bevilacqua Builders Inc - Contractor Creative Land & Water Engineering - Civil Engineering Barbara Peterson Landscape - Landscape Design Nest & Company - Interior Furnishings Eric Roth Photography - Photography

The six-panel NanaWall NW Wood 540 was customized with elegant Pine wood frames to perfectly complement the exterior envelope and interior design features. This wood framed bifold door elevates the contemporary pool house feel of the space with thin, minimal frames and a barefoot-friendly Low Profile Saddle sill. For optimal year-round function, the system was specified with a convenient swing door to provide quick indoor-outdoor access when the panels are closed. As a Generation 4 folding glass door, the system is designed to offer the smoothest operation, allowing the homeowners to easily open or close the pool house based on the needs of the day. From Summer to Winter: Year-Round Indoor-Outdoor Living To create a true four-season retreat, the wood framed bifold door was specified with double-glazed panels. This would ensure optimal thermal comfort by keeping the contemporary pool house space warm in winter without breaking the visual connection to the outdoors. The system’s quadruple laminated wood adds another layer of energy efficiency and strength against seasonal weather. “The homeowners love the flow between the pool house and pool area,” says PSW. “Even when it snows, the homeowners talked about how nice it would be to be in the pool house and enjoy the beauty of snowfall from inside with amazing views provided by the NanaWall.” This Fox Chapel backyard perfectly embodies the very essence of indoor-outdoor living. What was once an outdated pool and shed has been reimagined into a contemporary pool house and outdoor entertaining area that sits in harmony with its natural surroundings. Seamlessly connected through the NanaWall wood framed bifold door, the indoor-outdoor spaces merge into one, creating a luxurious backyard retreat for laid-back living and memorable gatherings. “The homeowners are absolutely in love with the finished project. This has made their outdoor living experience so much more enjoyable,” says PSW. “Everyone involved with the project exceeded expectations, and PSW is honored to be a part of bringing this dream to reality.” Discover how other indoor-outdoor spaces leverage NanaWall wood framed bifold doors in our inspiring project library! https://www.nanawall.com/blog/luxury-outdoor-living-design-and-wood-framed-bifold-door-create-serene-escape

SUSTAINABLE, COOL, AND A SMOOTH FLIGHT FOR YOU This was the first Executive VIP CAT I & II Airport Hangar ever sold at the Boulder Municipal Airport. We completed the first phase of this pilot project in 2019. We completed a remodel for a national shoe brand's headquarters in 2022. The original build made it perfect for private aircraft/jet owners who want to be based right in the heart of the developing area of Boulder City. The first of three planned executive hangars is nestled in the premium south-west location of Boulder Airport with stunning waterfront & mountain views of Hayden Lake, the iconic Flatirons, Boulder Foothills, and white capped Front Range. Before being remodeled primarily for office space, the 4,650 SF executive hangar could accommodate as many as 5 aircraft and included a 30’x15’ 2nd floor mezzanine office flooded with natural light, operable skylight providing ventilation, large picture window and phenomenal Skydeck with panoramic views of the lake and flatirons. The new owners added more mezzanine square footage and windows to section off the area for an executive office space and multi-purpose/multi-media room. This is one of the only high-performance renewable energy executive airport hangars in the country, exempt from energy code requirements due to low energy usage of less than 1 watt/SF. It was designed with a 6 hour fire-rating, fire sprinkling system, and built with high performance hybrid engineering and technologies to offset the energy load pathways so when all renewables are added it can operate completely standalone and self-sustainable. The building envelope insulation & sound attenuation systems includes 10” Insulated Concrete Form walls using recycled materials & radiant in-floor heat. In the recent remodel we added geothermal loops to utilize the in-floor tubing for renewable cooling in the hot summer months. The 58’x18’ Schweiss hydraulic hangar door features insulated panels (like what NASA uses inside their rockets) and 6 windows. There’s an additional 10’x10’ overhead door & 2 personnel doors. The 4,095 SF new structural concrete slab apron was constructed to CDOT spec with 65’ trench drain at apron entrance. The main floor features an ADA bathroom with shower, utility floor sink, 2 interior hot & cold hose bibs. Electrical service is a commercial 480-volt, 3-phase with 400 amps with outlets throughout. Ready with 2 EV (Electric vehicle) charging outlets on the west exterior. As mentioned, after the hangar was purchased by a sustainable national shoe brand, we remodeled it for the new owner's work and warehousing requirements. We added 3 Viessman Solar thermal collectors, HRV-Geothermal Pre-Heating and Cooling System & Battery Power Back-Up System, portable work station “pods”, a large bar, kitchen area, eating spaces, lounge, multimedia room, shoe display areas, more natural lighting and other custom finishes. Once a solar PV system is added to the south-facing rooftop, the hangar will achieve better than a net zero designation, it could in fact help power some of the other facilities at the airport as well as several EVs through outdoor charging stations. Contact Constructive Alternatives if you’re interested in a similar self-sustainable executive hangar, built to suit.

SUSTAINABLE, COOL, AND A SMOOTH FLIGHT FOR YOU This was the first Executive VIP CAT I & II Airport Hangar ever sold at the Boulder Municipal Airport. We completed the first phase of this pilot project in 2019. We completed a remodel for a national shoe brand's headquarters in 2022. The original build made it perfect for private aircraft/jet owners who want to be based right in the heart of the developing area of Boulder City. The first of three planned executive hangars is nestled in the premium south-west location of Boulder Airport with stunning waterfront & mountain views of Hayden Lake, the iconic Flatirons, Boulder Foothills, and white capped Front Range. Before being remodeled primarily for office space, the 4,650 SF executive hangar could accommodate as many as 5 aircraft and included a 30’x15’ 2nd floor mezzanine office flooded with natural light, operable skylight providing ventilation, large picture window and phenomenal Skydeck with panoramic views of the lake and flatirons. The new owners added more mezzanine square footage and windows to section off the area for an executive office space and multi-purpose/multi-media room. This is one of the only high-performance renewable energy executive airport hangars in the country, exempt from energy code requirements due to low energy usage of less than 1 watt/SF. It was designed with a 6 hour fire-rating, fire sprinkling system, and built with high performance hybrid engineering and technologies to offset the energy load pathways so when all renewables are added it can operate completely standalone and self-sustainable. The building envelope insulation & sound attenuation systems includes 10” Insulated Concrete Form walls using recycled materials & radiant in-floor heat. In the recent remodel we added geothermal loops to utilize the in-floor tubing for renewable cooling in the hot summer months. The 58’x18’ Schweiss hydraulic hangar door features insulated panels (like what NASA uses inside their rockets) and 6 windows. There’s an additional 10’x10’ overhead door & 2 personnel doors. The 4,095 SF new structural concrete slab apron was constructed to CDOT spec with 65’ trench drain at apron entrance. The main floor features an ADA bathroom with shower, utility floor sink, 2 interior hot & cold hose bibs. Electrical service is a commercial 480-volt, 3-phase with 400 amps with outlets throughout. Ready with 2 EV (Electric vehicle) charging outlets on the west exterior. As mentioned, after the hangar was purchased by a sustainable national shoe brand, we remodeled it for the new owner's work and warehousing requirements. We added 3 Viessman Solar thermal collectors, HRV-Geothermal Pre-Heating and Cooling System & Battery Power Back-Up System, portable work station “pods”, a large bar, kitchen area, eating spaces, lounge, multimedia room, shoe display areas, more natural lighting and other custom finishes. Once a solar PV system is added to the south-facing rooftop, the hangar will achieve better than a net zero designation, it could in fact help power some of the other facilities at the airport as well as several EVs through outdoor charging stations. Contact Constructive Alternatives if you’re interested in a similar self-sustainable executive hangar, built to suit.

SUSTAINABLE, COOL, AND A SMOOTH FLIGHT FOR YOU This was the first Executive VIP CAT I & II Airport Hangar ever sold at the Boulder Municipal Airport. We completed the first phase of this pilot project in 2019. We completed a remodel for a national shoe brand's headquarters in 2022. The original build made it perfect for private aircraft/jet owners who want to be based right in the heart of the developing area of Boulder City. The first of three planned executive hangars is nestled in the premium south-west location of Boulder Airport with stunning waterfront & mountain views of Hayden Lake, the iconic Flatirons, Boulder Foothills, and white capped Front Range. Before being remodeled primarily for office space, the 4,650 SF executive hangar could accommodate as many as 5 aircraft and included a 30’x15’ 2nd floor mezzanine office flooded with natural light, operable skylight providing ventilation, large picture window and phenomenal Skydeck with panoramic views of the lake and flatirons. The new owners added more mezzanine square footage and windows to section off the area for an executive office space and multi-purpose/multi-media room. This is one of the only high-performance renewable energy executive airport hangars in the country, exempt from energy code requirements due to low energy usage of less than 1 watt/SF. It was designed with a 6 hour fire-rating, fire sprinkling system, and built with high performance hybrid engineering and technologies to offset the energy load pathways so when all renewables are added it can operate completely standalone and self-sustainable. The building envelope insulation & sound attenuation systems includes 10” Insulated Concrete Form walls using recycled materials & radiant in-floor heat. In the recent remodel we added geothermal loops to utilize the in-floor tubing for renewable cooling in the hot summer months. The 58’x18’ Schweiss hydraulic hangar door features insulated panels (like what NASA uses inside their rockets) and 6 windows. There’s an additional 10’x10’ overhead door & 2 personnel doors. The 4,095 SF new structural concrete slab apron was constructed to CDOT spec with 65’ trench drain at apron entrance. The main floor features an ADA bathroom with shower, utility floor sink, 2 interior hot & cold hose bibs. Electrical service is a commercial 480-volt, 3-phase with 400 amps with outlets throughout. Ready with 2 EV (Electric vehicle) charging outlets on the west exterior. As mentioned, after the hangar was purchased by a sustainable national shoe brand, we remodeled it for the new owner's work and warehousing requirements. We added 3 Viessman Solar thermal collectors, HRV-Geothermal Pre-Heating and Cooling System & Battery Power Back-Up System, portable work station “pods”, a large bar, kitchen area, eating spaces, lounge, multimedia room, shoe display areas, more natural lighting and other custom finishes. Once a solar PV system is added to the south-facing rooftop, the hangar will achieve better than a net zero designation, it could in fact help power some of the other facilities at the airport as well as several EVs through outdoor charging stations. Contact Constructive Alternatives if you’re interested in a similar self-sustainable executive hangar, built to suit.

Dream backyard This Amazing Dream Backyard Project features just about all the options you have ever dreamed about having in your very own backyard. We just recently completed this project and as you can tell from the video and photos below it’s quite the dream backyard. But dreams can came true, and for these homeowners they certainly have. So proud of our team for coming together and installing another amazing backyard paradise. The outdoor living area features everything from fire to water and includes multiple travertine patio areas, flagstone and travertine walkways, stone steps, pondless waterfall, landscape lighting, outdoor audio, fire pit, and landscaping. To think were the project came from a decrepit old deck to this beautiful work of art is almost unreal! Travertine Patio and Fire Pit The dream backyard project included the installation of various hardscape items including travertine patio, Seating walls, Steps, and walkways. The patio material is silver travertine laid in French pattern. The patio area is approximately 1,012 sq ft with antiqued finish and natural edge. All walls and steps are constructed using natural stone Semco ‘Cedar Ridge’ sawn wall stone. Caps and stair treads are constructed of natural stone ‘Chateau Limestone’ 2″ thick and 14″ deep, thermal top and rock faced edges. Cap stone for grill wall is 18″ wide polished and sealed top. Under grill area the patio is outdoor ‘wood look’ porcelain tile. A Semco ‘Cedar Ridge’ 57″ Fire Pit with Large Zentro ‘Smokeless’ insert is installed on the lower patio area. As of these pictures and this video the fire pit insert has yet to be installed. Sealing of Travertine surfaces using GST stain blocking sealer will be completed once the project is entirely finished. Stepping stone pathway to the side of the home is full color Pa Flagstone irregular steppers. Landscaping Landscape beds, plants, trees, edging and mulching was done around the entire back and side yards of the home using triple cut bark mulch. Plant variety and size specifications were all chosen by our amazing designer Wes. The landscaping portion of this project also included the grading, lawn repair, and seeding of all the areas damaged and disturbed during construction. Pondless Waterfall A 15′ pondless waterfall was installed into the new landscape to the side of the lower patio for maximum viewing. The waterfall features approximately 15 foot of stream with multiple waterfalls. Two side by side spillways merge into a wide stream with a small waterfall before turning and going into the final falls at the basin area. The Waterfall is outfitted with low voltage LED underwater landscape lighting throughout. Outdoor Sound The Outdoor Sound System installed was a TRU Audio 4 speaker system and 12″ outdoor hardscape subwoofer. This system also includes the amplifier which is located in the home owners basement as well as Apple Airport Express and Blue Tooth Connection. Siding Siding work to be completed is still unfinished as of the time this video and pictures were shot. Siding was removed and salvaged in areas need for the patio and electrical work. Siding in areas of new outdoor living space to include: new vinyl siding on entire rear kitchen/bathroom wall from top to bottom as well as Piecing in around lights and sliding door on adjacent wall and in back of garage.

Nestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond. The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection. Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains. “The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.” A Barn-Inspired Exterior Adds Visual Flair The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond. Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design. “The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.” Interior Design That Mirrors Nature’s Tranquility Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout. Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside. Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline. At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio. Unique Customizations for Visual Appeal and a Steel Effect Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior. In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU. “The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.” Matching Windows and Doors: Create a Cohesive Design Program Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly. “This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.” Sustainability Where It Matters Most New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope. Indoor-Outdoor Living Spaces for Relaxing and Entertaining In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children. Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.” Final Thoughts: A Barn-Inspired Design for Contemporary Living This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons. “When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.” Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery! Frequently Asked Questions (FAQs) What is Slimline Steel Effect? Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost. How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors? NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance. What are the benefits of Steel Effect folding glass walls? Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track. Can Slimline Steel Effect glass walls be customized? Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here. How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors? Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.

Dream backyard This Amazing Dream Backyard Project features just about all the options you have ever dreamed about having in your very own backyard. We just recently completed this project and as you can tell from the video and photos below it’s quite the dream backyard. But dreams can came true, and for these homeowners they certainly have. So proud of our team for coming together and installing another amazing backyard paradise. The outdoor living area features everything from fire to water and includes multiple travertine patio areas, flagstone and travertine walkways, stone steps, pondless waterfall, landscape lighting, outdoor audio, fire pit, and landscaping. To think were the project came from a decrepit old deck to this beautiful work of art is almost unreal! Travertine Patio and Fire Pit The dream backyard project included the installation of various hardscape items including travertine patio, Seating walls, Steps, and walkways. The patio material is silver travertine laid in French pattern. The patio area is approximately 1,012 sq ft with antiqued finish and natural edge. All walls and steps are constructed using natural stone Semco ‘Cedar Ridge’ sawn wall stone. Caps and stair treads are constructed of natural stone ‘Chateau Limestone’ 2″ thick and 14″ deep, thermal top and rock faced edges. Cap stone for grill wall is 18″ wide polished and sealed top. Under grill area the patio is outdoor ‘wood look’ porcelain tile. A Semco ‘Cedar Ridge’ 57″ Fire Pit with Large Zentro ‘Smokeless’ insert is installed on the lower patio area. As of these pictures and this video the fire pit insert has yet to be installed. Sealing of Travertine surfaces using GST stain blocking sealer will be completed once the project is entirely finished. Stepping stone pathway to the side of the home is full color Pa Flagstone irregular steppers. Landscaping Landscape beds, plants, trees, edging and mulching was done around the entire back and side yards of the home using triple cut bark mulch. Plant variety and size specifications were all chosen by our amazing designer Wes. The landscaping portion of this project also included the grading, lawn repair, and seeding of all the areas damaged and disturbed during construction. Pondless Waterfall A 15′ pondless waterfall was installed into the new landscape to the side of the lower patio for maximum viewing. The waterfall features approximately 15 foot of stream with multiple waterfalls. Two side by side spillways merge into a wide stream with a small waterfall before turning and going into the final falls at the basin area. The Waterfall is outfitted with low voltage LED underwater landscape lighting throughout. Outdoor Sound The Outdoor Sound System installed was a TRU Audio 4 speaker system and 12″ outdoor hardscape subwoofer. This system also includes the amplifier which is located in the home owners basement as well as Apple Airport Express and Blue Tooth Connection. Siding Siding work to be completed is still unfinished as of the time this video and pictures were shot. Siding was removed and salvaged in areas need for the patio and electrical work. Siding in areas of new outdoor living space to include: new vinyl siding on entire rear kitchen/bathroom wall from top to bottom as well as Piecing in around lights and sliding door on adjacent wall and in back of garage.

Nestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond. The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection. Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains. “The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.” A Barn-Inspired Exterior Adds Visual Flair The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond. Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design. “The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.” Interior Design That Mirrors Nature’s Tranquility Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout. Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside. Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline. At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio. Unique Customizations for Visual Appeal and a Steel Effect Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior. In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU. “The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.” Matching Windows and Doors: Create a Cohesive Design Program Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly. “This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.” Sustainability Where It Matters Most New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope. Indoor-Outdoor Living Spaces for Relaxing and Entertaining In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children. Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.” Final Thoughts: A Barn-Inspired Design for Contemporary Living This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons. “When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.” Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery! Frequently Asked Questions (FAQs) What is Slimline Steel Effect? Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost. How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors? NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance. What are the benefits of Steel Effect folding glass walls? Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track. Can Slimline Steel Effect glass walls be customized? Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here. How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors? Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.

Nestled in the lush landscape, a modern reinterpretation of a once-fallen barn now features a charming guest cottage with stylish details and contemporary amenities. Situated along a narrow lot in Germantown, New York, the cottage completes a cluster of existing buildings, forming an intimate courtyard on one side. Steel effect folding patio doors fully open the living areas to the expansive fields and the Catskill Mountains beyond. The homeowners, a young family with parents living abroad, envisioned a cozy yet modern ADU for extended stays. Designed by Lauren Cawse, AIA, architect and partner at The Art of Building, the year-round retreat draws inspiration from traditional local barns while embracing a seamless indoor-outdoor connection. Captivating Guest Cottage Design Enhances the Senses with Steel Effect Folding Patio Doors The modern ADU design started with the site itself. Positioned between residential and commercial neighbors, the elongated property required a careful balance of privacy and openness. Architect Lauren Cawse approached the layout by redefining the existing house and garage as the east and west sides of an outdoor room, with the new cottage forming its southern boundary. This arrangement created a clear courtyard near the main residence while directing the 800-square-foot guest house toward the open meadow and the distant Catskill Mountains. “The unique character of the site and its history inspired the architectural direction,” says Cawse. “The intent was to create a secondary structure in the compound in clear contrast to the modern farmhouse style of the house and garage.” A Barn-Inspired Exterior Adds Visual Flair The exterior envelope evokes a traditional barn with a simple gable shape, weathered wood siding, cedar shingles, and a foundation veneer made of local fieldstone. A large sliding barn door adds a complementary feature to the courtyard-facing side, creating a dynamic opening that maintains uninterrupted views through the cottage to the meadow beyond. Steel effect folding patio doors surrounding the structure add a modern touch of transparency, and simulated divided lites allow the contemporary glass wall systems to harmonize with the traditional elements of the modern ADU design. “The goal was to fully open the living areas to the outdoors, framing views to the meadows and mountains,” says Cawse. “The positioning of the NanaWall systems frames the views and, when open, dissolves the boundary between inside and out.” Interior Design That Mirrors Nature’s Tranquility Inside, the design program features a simple layout with one bedroom, a full bath, a kitchenette, and a living area with a wood-burning stove. The interior, a collaboration between The Art of Building and the homeowners, is defined by an understated palette and tactile materials that reflect the natural setting. Color is introduced through the framed glass views on all sides of the structure. Reclaimed timber collar ties span the ceiling overhead, while stone surfaces and naturally patinated metal accents add quiet texture throughout. Custom hand-painted Delft tiles along the kitchen backsplash add personal detail, and terra cotta flooring in the bathroom brings warmth and old-world charm. Soaring ceilings and abundant daylight create a peaceful play of light and shadow, shifting subtly with the seasons and emphasizing the cottage’s connection to the natural landscape outside. Sleek Steel Effect Folding Patio Doors Elevate the Modern ADU Design Aesthetic Three customized steel effect folding patio doors define the living space, each aligned to respond to a different edge of the site. The largest, spanning nearly 20 feet wide and just under eight feet tall, opens directly onto the stone patio, allowing the main gathering area to extend fully into the landscape. Along the side of the living room, a smaller 10-foot-wide system introduces more light and ventilation, nearly creating an open corner condition if not for the structural post that supports the façade and roofline. At the rear, a fourth ten-foot-wide system features a French door swing panel configuration that opens toward the courtyard, strengthening the design connection to the main residence. All steel effect folding patio doors were specified with a low-maintenance, water-rated Performance Sill to safeguard against inclement weather while providing a seamless, barrier-free transition to the outdoor patio. Unique Customizations for Visual Appeal and a Steel Effect Each folding patio door system is configured to open outward, maximizing usable floor space in the compact interior and allowing furniture placement to remain uninterrupted. By stacking outward, the steel effect folding patio doors, specified in a SE Classic Bronze powder coat, ensure every inch of the cottage is optimized. Simulated divided lites create a consistent rhythm across windows and doors, maintaining alignment with the traditional barn-inspired exterior. In the bedroom, a three-panel, 10-foot-wide system mirrors these customizations, matching the steel effect divided-lite pattern and outward-opening configuration, extending the indoor-outdoor connection while preserving visual continuity throughout the ADU. “The divided lites were crucial to the architectural vision, and while budget prohibited a steel and glass system, NanaWall Systems’ thin frames provide the open and airy feeling we hoped to attain,” says Cawse. “Simulated divided lites transition the thoroughly modern element of the glass walls to remain in harmony with the otherwise traditional palette.” Matching Windows and Doors: Create a Cohesive Design Program Alongside the larger openings in the living areas and bedroom, a smaller 3-foot-tall NanaWall tilt turn window was added to the bathroom. This window-sized NanaWall system perfectly matches the divided lite panels and sleek frames of the steel effect folding patio doors, creating a cohesive modern ADU design throughout. The compact opening provides ventilation and natural light, enhancing the spa-like atmosphere along with natural stone flooring. The matching glass lines and sleek profiles of the NanaWall Generation 4 comprehensive product line further unify visual consistency, allowing each system to fit into the architectural style seamlessly. “This project had three bifold glass walls, a pair of double French doors with sidelites, and a single tilt turn window,” says architect Lauren Cawse. “Being able to work with a single manufacturer provided aesthetic cohesiveness and simplified coordination.” Sustainability Where It Matters Most New York weather can vary from hot 85-degree summers to cold 26-degree winters. Creating an efficient living space was a primary goal. To achieve this, the design included Timber HP-insulated walls and floors with a heat pump system for effective heating and cooling. Additionally, the steel effect folding patio doors and windows were specified with double-glazed panels to ensure a tight building envelope. Indoor-Outdoor Living Spaces for Relaxing and Entertaining In-house landscape designer Liz Pulver worked closely with the team to conceive open-air spaces that enhanced the connection between inside and outside. To the south end of the lot, the landscape transitions into an “enhanced meadow,” allowing the cottage to feel embedded within the surrounding fields rather than set apart from them. A circular pool was designed to mimic a natural pond with a modest footprint. Around it, a minimalist fence and sunken stone ha-ha wall offer discreet safety for young children. Limited space due to existing infrastructure and zoning setbacks left only a small footprint for the swimming pool, prompting the designer to propose a circular form that maximized the usable swimming area. “We felt that the perfect way to integrate a pool into the property and to honor the landscape would be to treat the pool as a piece of art itself,” says Pulver. “The result is a beautiful round pool that serves as both a functional retreat and a sculptural moment.” Final Thoughts: A Barn-Inspired Design for Contemporary Living This modern ADU design skillfully combines modern features with the enduring charm of traditional barns. The outcome is a welcoming living space that stands out amid a stunning landscape. Natural materials that mimic the beauty of the outdoors, expansive steel effect folding patio doors that fill the space with fresh air and natural light, and a restrained interior design work together to create an inviting retreat for everyday living, throughout the seasons. “When entering the site, the cottage feels as though it was always there,” says Cawse. “It achieves its two opposing goals by creating a feeling of intimacy and enclosure near the house while also functioning as a threshold to the expansive fields and views beyond.” Explore how NanaWall folding patio doors elevate other ADU spaces in our inspiring project photo gallery! Frequently Asked Questions (FAQs) What is Slimline Steel Effect? Steel Effect is a folding patio door design option that replicates the appearance of traditional steel-framed glass doors. It combines the look of steel with the performance benefits of aluminum, including energy efficiency, low maintenance, greater design flexibility, and lower cost. How does a NanaWall Steel Effect aluminum system compare to traditional steel-framed glass doors? NanaWall Slimline Steel Effect folding patio doors replicate the narrow frames of traditional steel doors with improved weather and thermal performance and easier operation. They are lighter, more corrosion-resistant, and feature a thermally broken design for better energy efficiency and lower long-term maintenance. What are the benefits of Steel Effect folding glass walls? Steel Effect folding glass walls deliver the narrow sightlines and grid patterns of traditional steel, combined with the performance and low maintenance of aluminum. The slimline steel effect option offers all the benefits of our Generation 4 product line, including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track. Can Slimline Steel Effect glass walls be customized? Yes, these systems offer a high level of customization to suit different architectural styles, including simulated divided lites specified in various patterns, popular SE colors for a true steel effect look, and a contemporary glass stop option for a refined look. Contact your local NanaWall representative for additional options here. How energy-efficient and weather-resistant are Slimline Steel Effect folding patio doors? Steel effect folding systems are engineered for strong thermal and weather performance. Thermally broken frames and high-performance glazing help improve energy efficiency. Each NanaWall system has been independently tested for air, water, structural integrity, and forced entry with excellent results.