Finally gave in and tried spray foam in my attic after years of fighting with fiberglass

I've been doing my own renovations on my 1970s ABQ house for like 8 years now. Always used fiberglass batts because they're cheap and I know how to handle them. But last month I had to air seal around some new can lights and just went for a spray foam kit. Dude. It took me 2 hours what would have taken all weekend with batts and caulk. The gap filling alone was worth it. Has anyone else switched and actually seen a drop in their heating bills?

3 comments

3 Comments

ray_campbell4618d ago

Read a study once that said spray foam can cut heating costs by up to 30 percent if done right.

amy97419d ago

Did you use the closed cell stuff or the open cell? I went with closed cell in my 70s house and saw a legit drop in my gas bill that first winter. The air sealing is what really makes it worth the mess.

alicehernandez18d ago

Oh man, that's such a good point about air sealing being the real hero. I went with closed cell too in my 1950s split-level (talk about a drafty nightmare) and yeah, the first winter was a total game changer. Were you able to actually see where the leaks were before you foamed, or did you just go by feel and guesswork? I ask because I had one contractor tell me to focus on the rim joists and another said the attic floor was the priority, and honestly I just picked the cheaper option and crossed my fingers.