Attic Spray Foam Insulation Problems
When we seal the attic with spray foam it s as tight as a butter tub.
Attic spray foam insulation problems. Insulating with spray foam insulation at the roof line will cause moisture problems with the roof sheathing. The coverage needs to be uniform because a lot of heat will go through the under insulated areas. The spray foam insulation. However in a traditionally insulated attic insulation on the ceiling the attic is vented.
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. Since there are dozens of brands of spray foam insulation. A case of incompatibility. Check the rh levels in your attic over the course of a few weeks to see if the air is holding a lot of moisture.
The problem was that the installer was doing his first spray foam job ever and the thickness of the insulation varied from zero visible roof deck to about 9. Moisture is also another huge issue when it comes to spray foam insulation in an attic. The poor application of spray foam insulation by an untrained or. It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing.
If you have high humidity in your spray foamed attic there are a variety of things that might be causing the problem. In an unvented attic scenario to limit air leakage as well as any associated condensation at the roof line a continuous air barrier is required. But then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic.
Spray foam insulation problems misrepresentation of the spray foam insulation products used. Unfortunately good average thickness doesn t cut it. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits. Poor application of the spray foam insulation.
Placement errors during installation attics are the main spots in a home that are filled with unusual shapes gaps and spaces where air bubbles have the potential to form when you spray foam insulation. It is made from inert polymers that do not become a food source for mold mildew or fungi when it becomes wet.