Spray Foam Inside Attic Insulation Problems

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.

Spray foam inside attic insulation problems.

Oh and when you put it in your attic spray foam. The evaluation service report esr for spray foam insulation products provides a valuable resource based on a third. By doing so you bring the attic inside the building enclosure. Are you considering spray foam insulation for your home but you have concerns about what could go wrong.

One of those problems is moving the building enclosure from the drywall ceiling of a home to the roofline. This is not just a diyers issue. Owner received an energy audit and implemented some of the recommendations. But what happens to that attic space when you move it inside.

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. It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing. Many homeowners love spray foam insulation and it s easy to understand why. Nothing unusual about that.

Using spray foam insulation in an unvented attic application. Compared to traditional insulation whether fiberglass or cellulose spray foam has the potential to provide better performance via its air sealing properties high r values per inch of thickness and in the case of closed cell spray foam ability to repel moisture. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Insulating with spray foam insulation at the roof line will cause moisture problems with the roof sheathing.

Spray foam insulation can solve problems that other insulation materials can t. Just like with any other product as something becomes more popular there will be an increase in misuse. Removed all batt insulation in the attic removed both hvac systems and all duct work performed air sealing in the crawl space and the attic at the floor and ceiling and installed 5 of demilec open cell spray foam on the roof deck. In fact spray foam insulation can help avoid problems like these.

Spray foam insulation has been the material of choice for many builders and homeowners for nearly 30 years. Moisture is also another huge issue when it comes to spray foam insulation in an attic. Earlier this year i got a question about a home that had spray foam insulation in the attic. Joe lstiburek has been saying for a while now that we can t just ignore the.

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. 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.