Spray foam insulation, open or closed ?

[JWalker08]

Closed cell on residential you typically see 3" on ceilings and 2" walls. I have a 30x40 shop that I had closed cell sprayed in 2" ceiling and 1" walls and it make at least a 15-20 degree difference in the middle of summer if not better and I have never had anything freeze in the shop.
I have no personal experience with open cell other than it looks terrible if you were to leave any areas exposed. Closed cell can be painted and doesn't look half bad. A buddy of mine who is a home builder says they no longer use open cell.
Good luck!

[alwaysinshorts]

Great information. The cost for that closed foam above it still more than I thought. It ran 1300 or so for 1000 sf. That seems pretty expensive but I also haven't priced anything, just merely a feeling.

[Turtlewax]

I don't have a clue as to the answer and will be closely watching this thread. We're just framing our lakehouse as well, and had some other questions....like how do you stop a woman from picking the most expensive doors God ever made.

Thats easy...show her the second most expensive pair ever made. Win Win.

[dallred]

We had closed cell sprayed between the floor joists to replace fiberglass on our pier and beam house on Lake Cypress Springs and it made a big difference.

[PopArcher]

Check Lowes and Home depoe, I have seen the foam kits there much cheaper than the ones offer on line.