Or do as tom silva does with nearly all houses these days.
Spray foam insulation attic floor.
Use closed cell foam it green for attic rafters.
The best attic insulation.
Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic.
Spray foam insulation is an incomplete name.
I can also tell you that 73 of all statistics are made up on the spot so please don t ask for.
Spray foam insulation that s convenient and easy to use.
Start with the attic floor.
R value of 7 in 1 inch 97 closed cell foam.
A properly done spray foam job not only insulates but also greatly reduces the air leakage of.
When we seal the attic with spray foam it s as tight as a butter tub.
However in a traditionally insulated attic insulation on the ceiling the attic is vented.
Class i e 84 fire retardant meets building code spec.
Spray foam insulation is installed to cover the entire attic floor and the juncture of the attic floor the top plates and the base of the baffles.
Homes insulated with it can be some of the most efficient and comfortable homes built.
Once you deal with the air up there this problem goes away with or without the insulation in the attic floor.
Get your kits the easy to use spray foam kit.
I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes.
Foam blocks airflow needs no vapor barrier and has a higher r value per inch.
Hire a pro to install spray foam insulation.
Stop using your attic for storage.
The best part of using foam it green spray foam on an attic floor is you only need 1 inch cured thickness to seal the living spaces you use from the attic.
To get a better air seal.
It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing.
Then you can use other forms of insulation like fiberglass or cellulose to add r value now that you have a tight air seal.
One huge benefit of the spray foam insulated attic is that conditioned air leakage from the ac furnace duct system is contained and used to condition the attic.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
It really should be called spray foam insulation and air barrier.
Loose fill fibrous insulation is installed over the spray foam on the attic floor and up against the baffles on top of spray foam insulation to full required insulation height.