Attic Ceiling Spray Foam Insulation

Both low density open cell and medium density closed cell spray foam can be used in an unvented attic to provide the needed thermal resistance and airtightness.

Attic ceiling spray foam insulation.

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. Thus the air in the attic is connected with the air in the house. Even if there is moisture in your attic from a leaking plumbing line a swamp cooler or a similar issue the spray foam insulation will deter the growth of organics in your home. When spray foam is installed on the underside of the roof deck the attic space is insulated from heat that otherwise would be entering the attic.

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. It is made from inert polymers that do not become a food source for mold mildew or fungi when it becomes wet. When we seal the attic with spray foam it s as tight as a butter tub. Board polyurethane 2 component spray foam kit touch n foam 2 component spray foam expands touch n foam 2 component spray foam expands and cures quickly to fill cavities gaps cracks expansion joints and other sources of air leakage in a building envelope.

An open cell foam low density spray polyurethane is a spray applied to provide continuous insulation and an air sealing barrier. You can use rigid foam panels or do as tom silva does with nearly all houses these days. In a vented attic all of that expensive airflow is lost to the environment. Resists moisture that can lead to mold or mildew and provides increased sound and thermal insulation.

The evaluation service report esr for spray foam insulation products provides a valuable resource based on a third party review of testing information useful for utilizing these products successfully and according to code requirements. There are numerous ways in which an unvented attic insulated with spray foam can reduce a home s energy consumption. The insulation reduces wildly high temperature spikes and so the attic becomes a conditioned part of the home like any other room. But a common reason to put spray foam on the roofline is to avoid having to air seal the attic floor.

However in a traditionally insulated attic insulation on the ceiling the attic is vented. 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. Installing insulation attics one of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins. Hire a pro to install spray foam insulation.