Spray Foam Austin

Spray foam installers missed a few of the air leakage sites.

As soon as I got a call to check out a 10,000 square foot house that had spray foam throughout, but the proprietors had a serious problem in their first summer in the house. Once I arrived, they took me personally to the master suite, where two towels were on the floor — to catch the rainfall falling off of the supply signs up in the ceiling!

The problem had been that the installers missed a few areas at the soffit within the attic above the master bedroom, as well as gaps around the tray roof, allowed the humid air flow into the room, where this naturally found the chilly surface to condense upon.

As this example illustrates, you have to seal the envelope. One of spray foam's greatest selling points is the air-sealing ability, but it cannot seal places where it's not dispersed. One of the nice things about utilizing spray foam in brand new construction is that you can do the Blower Door test before the drywall goes in. Even better, you can attempt for leaks with a haze machine.
Spray foam contractors didn't understand the building package and sprayed either not enough or too much.


In complicated houses, seeing exactly where house envelope is can be a problem. If the installer misses places, it may or may not be a good air leak, but it will certainly be a thermal bypass due to the lack of insulation. Every part of the building envelope must be protected, or the home will have extra heat loss/gain.

Another issue I've seen is that the specialist sprays extra foam simply because they haven't identified the location from the building envelope, the border between conditioned and unconditioned space. The wall with foam all over it has conditioned area on both sides. The home owner paid extra and got absolutely nothing for it.

Spray foam agreements and pulls away from the framework.

I've seen this only one time, and it was with shut cell foam, but I have heard of it happening along with open cell foam, as well. I don't know the details. However, I've heard it could derive from a bad batch of chemical substances, improper mixing, or excessive a temperature. Whatever the trigger, it's not a good thing. The picture below shows how the spray foam pulled away from the actual studs. A little bit of uninsulated region like that adds up to a lot of temperature loss/gain when the whole house offers that problem, as it does here.

Do a much better spray foam insulation for your home's roofing, call an expert Spray Foam Austin .
With them, you can assure that you get the best service.

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