Spray foam provides the highest r value while open cell spray foam has about an r value of 2 2 to 3 5 per inch closed cell spray foam has about 6 7 per inch.
Spray foam vs cellulose insulation attic.
However if your attic doesn t have any hvac equipment or air ducts you should install cellulose installation.
But with properly installed insulation you can cut down on your energy demand leading to a lower heating and cooling bill and creating a more comfortable.
Cellulose for attic insulation.
A properly done spray foam job not only insulates but also greatly reduces the air leakage of.
I d blow insulation on the attic floor after air sealing of course.
The unvented attic space is considered the most effective and up to date building practice particularly by the spray foam industry.
The big disadvantage with spray foam is cost.
Unvented attics sometimes called sealed enclosed or encapsulated attics feature insulation on the underside of the roof decking rather than on the attic floor.
Best way to insulate an attic.
If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary.
Other than the fact that it s an insulator cellulose can also reduce the noise heard between rooms.
It really should be called spray foam insulation and air barrier.
Cellulose attic insulation pros and cons.
Pro noise reduction.
Cellulose insulation is the oldest material used in home.
Spray foam insulation the foam usually polyurethane is sprayed to fill cracks and gaps in the attic to form a hermetically sealed barrier.
Once you deal with the air up there this problem goes away with or without the insulation in the attic floor.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
In most home markets this type of insulation is considered an added home value that will pay.
Spray foam if you were to look at a pie chart showing what you spend every year on home energy use your heating and cooling system would take up nearly half of the pie.
Spray foam insulation is an incomplete name.
As part of our ongoing mission to educate our customers we are here to discuss the best insulation for attics and the pros and cons that go along with each insulation type.
Properly mixing and applying spray foam insulation requires substantial expertise and can only be done by trained professionals.
To get a better air seal.
Depending on the region and market spray foam insulation can sell for 1 30 to 3 50 per square foot.
Cellulose insulation is probably the safest among all the other kinds of insulation there is including spray foam insulation.
You won t have any problem with it being accidentally exposed as it s not harmful at all.
Spray foam insulation drawbacks.