Lincoln Farmhouse LEED-H Platinum, Net-Positive Energy OVERVIEW. This LEED Platinum certified modern farmhouse ties into the cultural landscape of Lincoln, Massachusetts - a town known for its rich history, farming traditions, conservation efforts, and visionary architecture. The goal was to design and build a new single family home on 1.8 acres that respects the neighborhood’s agrarian roots, produces more energy than it consumes, and provides the family with flexible spaces to live-play-work-entertain. The resulting 2,800 SF home is proof that families do not need to compromise on style, space or comfort in a highly energy-efficient and healthy home. CONNECTION TO NATURE. The attached garage is ubiquitous in new construction in New England’s cold climate. This home’s barn-inspired garage is intentionally detached from the main dwelling. A covered walkway connects the two structures, creating an intentional connection with the outdoors between auto and home. FUNCTIONAL FLEXIBILITY. With a modest footprint, each space must serve a specific use, but also be flexible for atypical scenarios. The Mudroom serves everyday use for the couple and their children, but is also easy to tidy up to receive guests, eliminating the need for two entries found in most homes. A workspace is conveniently located off the mudroom; it looks out on to the back yard to supervise the children and can be closed off with a sliding door when not in use. The Away Room opens up to the Living Room for everyday use; it can be closed off with its oversized pocket door for secondary use as a guest bedroom with en suite bath. NET POSITIVE ENERGY. The all-electric home consumes 70% less energy than a code-built house, and with measured energy data produces 48% more energy annually than it consumes, making it a 'net positive' home. Thick walls and roofs lack thermal bridging, windows are high performance, triple-glazed, and a continuous air barrier yields minimal leakage (0.27ACH50) making the home among the tightest in the US. Systems include an air source heat pump, an energy recovery ventilator, and a 13.1kW photovoltaic system to offset consumption and support future electric cars. ACTUAL PERFORMANCE. -6.3 kBtu/sf/yr Energy Use Intensity (Actual monitored project data reported for the firm’s 2016 AIA 2030 Commitment. Average single family home is 52.0 kBtu/sf/yr.) o 10,900 kwh total consumption (8.5 kbtu/ft2 EUI) o 16,200 kwh total production o 5,300 kwh net surplus, equivalent to 15,000-25,000 electric car miles per year. 48% net positive. WATER EFFICIENCY. Plumbing fixtures and water closets consume a mere 60% of the federal standard, while high efficiency appliances such as the dishwasher and clothes washer also reduce consumption rates. FOOD PRODUCTION. After clearing all invasive species, apple, pear, peach and cherry trees were planted. Future plans include blueberry, raspberry and strawberry bushes, along with raised beds for vegetable gardening. The house also offers a below ground root cellar, built outside the home's thermal envelope, to gain the passive benefit of long term energy-free food storage. RESILIENCY. The home's ability to weather unforeseen challenges is predictable - it will fare well. The super-insulated envelope means during a winter storm with power outage, heat loss will be slow - taking days to drop to 60 degrees even with no heat source. During normal conditions, reduced energy consumption plus energy production means shelter from the burden of utility costs. Surplus production can power electric cars & appliances. The home exceeds snow & wind structural requirements, plus far surpasses standard construction for long term durability planning. ARCHITECT: ZeroEnergy Design http://zeroenergy.com/lincoln-farmhouse CONTRACTOR: Thoughtforms http://thoughtforms-corp.com/ PHOTOGRAPHER: Chuck Choi http://www.chuckchoi.com/

Lincoln Farmhouse LEED-H Platinum, Net-Positive Energy OVERVIEW. This LEED Platinum certified modern farmhouse ties into the cultural landscape of Lincoln, Massachusetts - a town known for its rich history, farming traditions, conservation efforts, and visionary architecture. The goal was to design and build a new single family home on 1.8 acres that respects the neighborhood’s agrarian roots, produces more energy than it consumes, and provides the family with flexible spaces to live-play-work-entertain. The resulting 2,800 SF home is proof that families do not need to compromise on style, space or comfort in a highly energy-efficient and healthy home. CONNECTION TO NATURE. The attached garage is ubiquitous in new construction in New England’s cold climate. This home’s barn-inspired garage is intentionally detached from the main dwelling. A covered walkway connects the two structures, creating an intentional connection with the outdoors between auto and home. FUNCTIONAL FLEXIBILITY. With a modest footprint, each space must serve a specific use, but also be flexible for atypical scenarios. The Mudroom serves everyday use for the couple and their children, but is also easy to tidy up to receive guests, eliminating the need for two entries found in most homes. A workspace is conveniently located off the mudroom; it looks out on to the back yard to supervise the children and can be closed off with a sliding door when not in use. The Away Room opens up to the Living Room for everyday use; it can be closed off with its oversized pocket door for secondary use as a guest bedroom with en suite bath. NET POSITIVE ENERGY. The all-electric home consumes 70% less energy than a code-built house, and with measured energy data produces 48% more energy annually than it consumes, making it a 'net positive' home. Thick walls and roofs lack thermal bridging, windows are high performance, triple-glazed, and a continuous air barrier yields minimal leakage (0.27ACH50) making the home among the tightest in the US. Systems include an air source heat pump, an energy recovery ventilator, and a 13.1kW photovoltaic system to offset consumption and support future electric cars. ACTUAL PERFORMANCE. -6.3 kBtu/sf/yr Energy Use Intensity (Actual monitored project data reported for the firm’s 2016 AIA 2030 Commitment. Average single family home is 52.0 kBtu/sf/yr.) o 10,900 kwh total consumption (8.5 kbtu/ft2 EUI) o 16,200 kwh total production o 5,300 kwh net surplus, equivalent to 15,000-25,000 electric car miles per year. 48% net positive. WATER EFFICIENCY. Plumbing fixtures and water closets consume a mere 60% of the federal standard, while high efficiency appliances such as the dishwasher and clothes washer also reduce consumption rates. FOOD PRODUCTION. After clearing all invasive species, apple, pear, peach and cherry trees were planted. Future plans include blueberry, raspberry and strawberry bushes, along with raised beds for vegetable gardening. The house also offers a below ground root cellar, built outside the home's thermal envelope, to gain the passive benefit of long term energy-free food storage. RESILIENCY. The home's ability to weather unforeseen challenges is predictable - it will fare well. The super-insulated envelope means during a winter storm with power outage, heat loss will be slow - taking days to drop to 60 degrees even with no heat source. During normal conditions, reduced energy consumption plus energy production means shelter from the burden of utility costs. Surplus production can power electric cars & appliances. The home exceeds snow & wind structural requirements, plus far surpasses standard construction for long term durability planning. ARCHITECT: ZeroEnergy Design http://zeroenergy.com/lincoln-farmhouse CONTRACTOR: Thoughtforms http://thoughtforms-corp.com/ PHOTOGRAPHER: Chuck Choi http://www.chuckchoi.com/

Galvanized water troughs used as planters. Bamboo was chosen for its tall, upright growth and evergreen screen to block apartment building. Photo credit: Michael Lockman

I recently helped a homeowner from my home town of Dursley who got in touch about her kitchen Flagstone floor. The problem revolved around an accident she had with raspberries which had stained the flagstones and the problem became compounded when a house hold clearing product was applied neat to clean up the mess. If you follow any of our Tile Doctor blogs, you will know that using strong household cleaning products can damage the sealer and, in this case, it had left white marks on the floor. I called round to the property to survey the floor as was surprised to find out that the floor had been cleaned and sealed only four months prior by another company. I don’t like to comment on other people’s work, but I found the grout lines and flagstones were still badly ingrained with dirt, so it wasn’t a through job. I completed by survey and demonstrated the process I would follow to resolve the issues on one of the flagstone tiles. She could not believe the difference I was able to make and booked me in straight away to restore the entire floor. My first task was to protect the wooden kitchen units from splashing that can happen when cleaning the floor. Once that was done, I set about stripping the sealer from the floor and deep cleaning the tile and grout with a strong dilution of Tile Doctor Pro-Clean. Pro-Clean is a concentrated, multi-purpose high-alkaline cleaner, stripper and degreaser which is safe to use on all types of tile, stone and grout including natural stone. Working in sections across the Kitchen and adjacent dining room I diluted one part Pro-Clean to two parts water and mopped it onto the flagstones and grout where I left it to soak in for roughly fifteen minutes. Then using a rotary floor buffer fitted with a black scrubbing pad I scrubbed the solution into the floor into the old sealer and trapped dirt came away turning the cleaning fluid black in the process. The soil was then rinsed off with water and then extracted with a powerful 3,000 watt wet and dry vacuum. This process was repeated until I was satisfied the floor was clean and I ran a stiff grout brush along the grout lines to ensure they also received a good scrub. After I was satisfied the section was clean it was rinsed thoroughly with water to neutralise the floor and remove any trace of product and then dried with the wet and dry vacuum. The cleaning process took up the whole day, but the flagstones would need to be dry before sealing so after giving the owner an update I left the floor for two days, so it could dry out thoroughly. On my return I tested the floor was dry in multiple places with a damp meter to ensure it was ready to be sealed. The readings showed that the wet and dry vacuum had done a good job in removing the moisture, so all was well. To seal I applied several coats of Tile Doctor Seal and Go allowing each coat to dry before applying the next however with such a large area to cover I was able to work in sections around the floor. Seal and Go works really well on Flagstones and leaves a very appealing sheen finish, also being water based it doesn’t leave a smell as it dries. The results were amazing, and the customer thanked me for making such a massive improvement on her floor. Before leaving I made sure to discuss after-care and to avoid the use of hash cleaning products. Malcolm Crowther Gloucester Tile Doctor