Spray Foam attic insulation

[Aimless]

i have a 2500 s.f. house with no trees, so i get direct sun all day. before i sprayed i could not cool to less than 78 degrees, and the a/c ran 24/7

This is my exact problem. The sun beats down on my house all day, plus I have vaulted ceilings which seem to cause some uneven cooling issues. Even with the A/C running all day by late afternoon on a really hot day I am lucky if my house is below 80 degrees.

Excellent info Nelson thanks.

 

[woodstock]

I chose the open cell on my attic spray, would rather know I have a leak and get it fixed than to have it leak for a period of time and never know until the roof collapses.

 

[cknuckles25]

I happen to work in this field, or at least Energy efficiency. Spray foam is great if you have an older house and ducts in your attic. We have several companies that run nets up the inside of the rafters and stop at the soffit, so there is no question about the shingles, as the soffit and ridge vent continue to work outside the foamed in attic.

It certainly seals your home a bit better and insulates as long as you get the job done right. If you are having this done, get someone with an Infrared camera to come take a look when they are done to make sure they didn't short change you on the depth.

The only downside is the cost. If you have a newer home and no ducks in your attic, then it's more cost effective to have regular insulation blown in, and spend the rest of your money on your ductwork, which I can almost guarantee is leaky.

Anyone that has any other questions, I have been doing and studying this for quite a few years and would be happy to help.

Thanks,

Clay

 

[cknuckles25]

I chose the open cell on my attic spray, would rather know I have a leak and get it fixed than to have it leak for a period of time and never know until the roof collapses.

Certainly that is a benefit of open cell, and I agree, I'd rather have that in my attic than closed. You just have to track down the leak because the odds of it being exactly in the same spot on the foam as it is in the roof is pretty low. It will leak through, then run down to a lower spot before seeping through. Luckily, thats still not a hard thing to figure out.

Clay