Spray Foam Attic Insulation Problems

Applying an even sheet of foam to the underside of a roof or other space can eliminate the routes that water vapor uses to leave the house.

Spray foam attic insulation problems.

The answers to your attic insulation problems can be as easy as understanding how different types of insulation work and what you need to look out for. Unfortunately good average thickness doesn t cut it. Poor application includes off ratio spraying of the material bad odors and the lack of adhesion. The coverage needs to be uniform because a lot of heat will go through the under insulated areas.

Below we are going to list the most common problems with using spray foam insulation in your home s attic or in any area inside of your home. The use of spray foam attic can present many potential problems especially when it comes to the improper installation of this material within this area of your home. The real issue is the improper formulation and installation of large amounts of spray foam in homes and buildings by poorly trained unknowledgeable or even unreputable commercial installers. Spray polyurethane foam insulation of any kind uses isocyanates in 50 of the formulation even those claimed to be made with soy or other natural oils.

Nothing unusual about that. In fact spray foam insulation can help avoid problems like these. A better long term solution many homeowners have found to fix their attic insulation problems has been to remove the old attic insulation and replace it with spray foam insulation. The poor application of spray foam insulation by an untrained or unlicensed contractor can lead to several problems according to fine home building.

Spray foam installers may miss some of the air leakage sites in the attic which can lead to problems in the insulation of the attic. Incorrectly installed spray foam insulation can trap moisture in the home encouraging rot and mold problems. The answer to fixing your attic insulation problems. 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.

Earlier this year i got a question about a home that had spray foam insulation in the attic. 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. 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. Problems with spray foam insulation in attics.

Over time trapped moisture can cause serious problems. Insulating with spray foam insulation at the roof line will cause moisture problems with the roof sheathing.