Closed cell and open cell aka 2 pound and pound respectively.
Spray in the attic.
Earlier this year i got a question about a home that had spray foam insulation in the attic.
If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary.
The use of spray foam attic can present many potential problems especially when it comes to the improper installation of this material within this area of your home.
Choose from two types.
However in a vented attic situation it will become approximately 130 degrees in the summer.
Spray foam attic insulation.
Spray foam offers the best attic insulation performance available.
The big disadvantage with spray foam is cost.
Spray foam installers may miss some of the air leakage sites in the attic which can lead to problems in the insulation of the attic.
A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
Use canned minimally expanding spray foam daptex plus window door foam sealant 7 for 16 ounces.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
Nothing unusual about that.