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Questions tagged [air-leaks]

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3answers
48 views

My new pool pump has a high PSI and bubbles are in the water. How can I repair it?

I recently had someone resurface my pool. During the resurfacing, they noted that the skimmer was not holding pressure per their test (long story short, these guys weren't 100% reliable and wanted a ...
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4answers
565 views

How should I air-seal this gap by the floor along an exterior wall?

There's a gap between some of my floorboards and the baseboard: The gap isn't just cosmetic. I used a wooden skewer to probe the hole and was able to insert it around 6 inches in: This is an ...
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1answer
2k views

How to insulate around heater exhaust vent pipe?

In the winter I noticed that my garage (and the den next to it) get really cold by the morning. As in very close to the outside temp cold. I didn't know where to borrow tools to detect where the leak ...
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1answer
228 views

Nail gun leaking air

What can I do if my nail gun leaks air through the chamber directly opposite from where it shoots nails? The gray part in the picture. Can it be dangerous?
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1answer
427 views

how to know if my home is under negative pressure?

I see dust under the baseboard but not much. And also, sometime I can smell "crawlspace" like smell but I am not very sure. How to technically test the air pressure in home? Even more, how to ...
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4answers
13k views

Teflon tape always leaking

I have tried 3 turns, lots of turns , less turns, I do it the right way I am like 100% sure but I always get leaks, I use it for fittings in compressed air (8 bar) https://www.youtube.com/watch?v=...
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1answer
53 views

Fixing an unsealed drip tray

So, when my air handler was installed, it seems like they didn't even bother properly connecting the drip tray. While the blower is on, I can feel air blowing out around the drip tray (downstream/...
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1answer
43 views

What profession/company is specialized in home air leaks?

We have purchased a condo a couple of years ago. We had it inspected by a pre-purchase-home-inspetor company as it is the common thing done around here. We live near Montreal in Canada, where it can ...
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2answers
56 views

Finding air leaks in ducts

I've been sealing the ducts in our basement with mastic. I've done a decent job, but I'm trying to find every leak in the basement, where it's accessible. For instance, I stand on the ladder in one ...
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4answers
2k views

Best way to air seal, vapor seal, and insulate exterior wall in old house?

I have a 90-year old house in Seattle. Exterior walls are constructed as follows: lath and plaster, uninsulated 2x4 stud bays, plank sheathing, cedar clapboard, 1" foil-faced styrofoam, vinyl siding. ...
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2answers
936 views

Is there any way to stop the air leak through my furnace without compromising its operation?

My house has an 80% efficiency gas furnace in an interior mechanical closet with the return air path below the furnace and through a grille under the closet. However, since the furnace is not a sealed ...
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2answers
16k views

Should my furnace closet have this huge duct opening into the unconditioned vented attic?

So my interior furnace closet has a huge duct in it that connects the closet to the unconditioned vented attic right above it. Needless to say, this is a huge air leak into the conditioned part of the ...