Attic Spray Foam Insulation Problems

Spray foam insulation problems.

Attic spray foam insulation problems.

Owner received an energy audit and implemented some of the recommendations. It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing. 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. 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.

In fact spray foam insulation can help avoid problems like these. Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic. If you are looking for an affordable insulation option for your attic then here are the pros and cons to consider with spray foam. Moisture is also another huge issue when it comes to spray foam insulation in an attic.

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. Insulating with spray foam insulation at the roof line will cause moisture problems with the roof sheathing. Earlier this year i got a question about a home that had spray foam insulation in the attic. Spray foam insulation is a great product.

Misrepresentation of the spray foam insulation products used. However in a traditionally insulated attic insulation on the ceiling the attic is vented. It provides a seal that is air tight. When we seal the attic with spray foam it s as tight as a butter tub.

I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes. 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. Since there are dozens of brands of spray foam insulation available it is important to make sure you are getting what you want and what you paid for. Spray foam insulation is a popular method of providing a greater r value insulation value per inch than conventional fiberglass batts.

Homes insulated with it can be some of the most efficient and comfortable homes built. When spray foam insulation is applied to your attic then you will create a fast seal thanks to the expansive nature of this. I can also tell you that 73 of all statistics are made up on the spot so please don t ask for. 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.

List of the pros of spray foam attic insulation. Badly installed spray foam may not insulate properly can cause moisture problems.