Contractor pricing

[Trashy]

I charge 3.50 per board foot for 2" of closed cell spray foam. 5.50 per board foot for 2" of closed cell with 3.5" of open cell. Plus a 500 set up fee

Those are damn good prices you are getting!!!!

A 4x8 is also 32 square feet. What is the difference between board feet and square feet then?

A board foot is the amount of drywall that a house requires, a typical 2500 sq ft 2 story 8' upper and 9' main. Can take up to 8000 - 12000 bd ft

The house is on bedrock and there is some exposed bedrock in the basement so I am putting 6" of foam on some of that rock, 6" of foam in some under floor joist spaces where it is a cold zone under the floor, 12" in the joist end spaces, and 2" against foundation walls. I've been told the foam is r5 / inch.

The house is around 3000 sq ft on 2 levels plus basement and 900 sq ft garage. But it has double walls with 3 layers of insulation and a TJI roof with 2 layers of insulation so that's why I have so much of the stuff!

I like how you are doing the cold space. 12" of foam imho is over kill in the rim joist's and joist ends. BASF Chemical has the highest LTTR at R-6.22/inch, but it is more $$$ to buy compared to the other Resin's out there. BASF 1/2 lbs foam has a great STC # and works very well for sound proofing. (I would have pushed for more foam in that house, and less batting).

 

[Trashy]

Also any residential/commercial spray foam job, the exposed foam (undeveloped area's) have to be covered. With a Thermal covering, with a 15 min burn time. If this is not done, it could void owners insurance. If something was to go wrong.......