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randynjen

How to cool condo loft

7 years ago
last modified: 7 years ago

I have a mountain condo that was built in the early 1980's. There is only one window in this unit and it is about 2 feet from the ground. All the summer heat gets caught in the remaining 25 feet of loft. I can't alter the exterior of the building in any way; for that reason I've tried a window air conditioning unit. The square footage is under 900 square feet but the AC only cools the lower 4 to 5 feet of the condo. Basically it does a great job of making the floor cool but again none of the heat stuck in the ceiling can escape. I have installed a large ceiling fan at the top of the loft and I am considering adding a second fan. It gets hotter than Hades about 100 or more degrees and may cool to 85 at night. I'm hoping that someone may have a good suggestion. Currently we have the ceiling open to the beams and we are about to replace the insulation so if there's something that could be done while the ceiling is open please let me know.


The itty bitty window on the ground floor is pictured above. Only the small lower half opens. We open it as well as the neighbor across the halls itty bitty window for a cross breeze. All of the ceiling from the beam nearest the fan to the window is currently open and here is a view from the window up to the fan. It is open to the decking of the roof. We are getting new insulation installed and new drywall in the next month or so.



These are the 4th and 5th floors of our condominium building and I am in a center unit. The itty bitty window is our only source of fresh air. I don't have attic access and from what I can tell the building doesn't have any attic venting along the 5th floor. All Eight Units with lofts have complained about the heat in the summer and we are hoping there's a "whole house" solution. Also in the winter the snow pact is great enough we are unable to add any type of projections to the roof as it would most likely sheer off. (the chimney did just last year that's why the ceiling is open)

I was thinking is there a way to run a duct possibly from the top floor to the window at the bottom? Maybe I can run an AC unit in the upper floor and allow the cool air to fall to the lower floor. This is my only sad idea. I hope if there is a way to rectify the stifling heat we find the solution before the insurance company closes the ceiling up. All ideas are welcome.

-Thanks in advance

Comments (14)

  • PRO
    7 years ago

    The sad thing is an AC unit needs to have air and so would need to be in the wall upstairs. I find solar shades to help a lot with too much heat and they still allow the view If it was possible with the condo board maybe a roof AC would be the answer for everyone .

  • 7 years ago

    The only thing I can think of is dark tinted window film. Maybe a home specialist that specializes in home systems might have some ideas. But it's a structure problem more than a cooling system issue it seems. Would large ceiling fans do anything? Just noticed you have one in the upper loft? Is it a vaulted ceilings in the main area? Maybe a ceiling fan there would help draw cool air to loft?

  • 7 years ago

    Don't go there in summer! That's all I can offer. Any of the other tenants have ideas?

  • PRO
    7 years ago

    Condo's are extremely difficult, because if the design of the place doesn't account for HVAC needs you are stuck with what you got.

    All you can do is go to the condo association and get approved to make changes to exterior. If there is no attic space for ducting, your only real option would be mini split AC.

    The mini split will have an outdoor condenser and a line set run from that unit to the indoor head that hangs on the wall or if possible a cassette style that is mounted in the ceiling (if there's enough room).

    The line set of the mini split can be placed behind decorative molding to hide it. This will increase the cost of the job... but the bigger task will be to get it approved by the condo association, not to mention the outdoor condenser that has to sit outside on a slab.

    The only other option is a window unit, but based on the pictures you show I doubt the window unit will work well.

    Sizing is important. So no matter what is allowed the sizing of the system in terms of capacity will have to be determined to cool this space properly.

    If all of this fails and the condo association doesn't budge, the other option is to sell and move.

    Good luck.

  • PRO
    7 years ago

    Yes a mini split installed in the loft will be the best solution.

    I hope they are using spray foam in the roof, that will help with heat gain.

    I would push for skylights, the unit will feel much brighter year round, in the summer you can open them to exhaust hot air.

  • 7 years ago
    last modified: 7 years ago

    Window tint will cut down on the heat. I have it in my desert home , it helps a lot. I also have 3% solar shades spanning a 20’ west facing wall of windows. Lower them in late afternoon.

  • 7 years ago

    We have avoided the condo every summer for the last 20 years. That's why I reached out. I was hoping with the ceiling open we might have a new option. The longer down rod is an idea and possibly a second fan in the lower floor. As for skylights or external condensers those options are out since our HOA is run by an attorney that has no interest in fixing the problems. Maybe it is time to move. Thanks for your input.

  • 7 years ago
    last modified: 7 years ago

    If the LL has no interest in the place, don't give him the satisfaction of your tenancy!!! If that isn't an option at this time, you can buy the HVAC units that exhaust out the window when in use. I have one that heats and cools and it works very well but will increase the utility bill. Sam's Club has them for under $500.

  • 7 years ago

    I have no idea how effective they actually are but I know people in New York City who use air conditioners which aren't mounted in the wall or a window and aren't vented.

  • 7 years ago
    last modified: 7 years ago

    With the ceiling opened up, look to see if you can install a whole house fan. You'll need some attic space...perhaps you can build a false ceiling and have it vent out a gable or roof.

    Whole house fans are great for quickly clearing hot stale air. The fan would draw cool air in from your window and exhaust out the hot air in your loft.

    Adding insulation to the roof space and putting film or thermal shades on the window will help minimize the heat gain.

    Agree with others to put in a new ceiling fan with longer downrod over your main living space...circulate the air between the lower level and loft.

  • 7 years ago

    There are portable air conditioning units that work fairly well for small areas. My son used them for his apt in NY. May work here to supplement what you already have after you get better insulation. A venting skylight would be most helpful!

  • PRO
    7 years ago

    The ceiling fan won't help since it isn't over the open area where the cool air is - put in a second fan with a longer down rod. It will help but probably only a little. If you can't get a variance from the condo board ( maybe all the units together could fight for something ), the portable will be the best bet if it doesn't need an exhaust. I had one but it needs to have a hose to the window to blow out the hot air from running it. Do you have laundry? how did they vent that out?

  • 7 years ago

    Debbi Washburn- There is no laundry in our units. The bathroom fan exhaust fan runs internally through the building to an outer wall but shares the chase with other units. We know this because one of the lower units has a tendency to smoke weed (something just recently legalized in our state) This smoke sometimes will stink up our bathroom.