Spray Foam Insulation Attic Floor

There is no need to install any spray foam on your attic floor since you will be moving your air barrier and your insulation layer to the sloped roof assembly.

Spray foam insulation attic floor. Then you can use other forms of insulation like fiberglass or cellulose to add r value now that you have a tight air seal. Thus the air in the attic is connected with the air in the house. The building envelope should completely surround the conditioned space and the insulation needs to be in contact with the air barrier. 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.

Install a minimum of 1 inch of spray foam insulation over the attic floor to provide a continuous air control layer. That gives you the chance to maximize your energy bill savings while spending the least on the project. When you choose energy attic insulation specialty services you are choosing a company with years of experience and a reputation for providing. The most important reason to transform your vented unconditioned attic into an unvented conditioned attic is to bring your air handler and ductwork inside your home s conditioned space.

Whether you select fiberglass cellulose or spray foam our insulation products are an investment that will quickly pay for themselves. Install the spray foam to meet or exceed code required r values or add additional loose fill or batt fibrous insulation over the 1 inch of spray foam insulation to levels that meet or exceed the current adopted building energy codes. However in a traditionally insulated attic insulation on the ceiling the attic is vented. An open cell foam low density spray polyurethane is a spray applied to provide continuous insulation and an air sealing barrier.

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. This spray foam is applied as a low or high pressure two component polyurethane spray foam that can be applied onto walls in unvented attics to ducts and ceilings and in vented attics and crawl spaces. The insulation label for the fiberglass indicated that this depth of insulation provides r 38 ft2 h ºf btu at 75 ºf. Two spray applied polyurethane foam systems were tested in the same attic.

Spray foam comes in two flavors open cell and closed cell and provides both parts of the building envelope the insulation and the air barrier. When we seal the attic with spray foam it s as tight as a butter tub. But a common reason to put spray foam on the roofline is to avoid having to air seal the attic floor.