Spray Foam Roofing Problems

A quickie roof and good r value.

Spray foam roofing problems.

At year 10 20 a contractor will add more coating and granules. Spray foam roofing problems and myths answered. Spray foam insulation problems. Not long ago someone even told me that in florida roofing companies won t let their workers go up on roofs with open cell spray foam because the roofs are so spongy the guys fall right through.

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. 7 common problems solutions of spf roofing. Choose open cell spray foam when insulating roofs since closed cell foam can trap water from a leaking roof damaging the framing material and roof. Posted by heather johnson in common roof problems.

Those are two of the selling points of spray polyurethane foam spf roofing but this type of roof isn t a perfect fit for all or even most commercial buildings. But despite its utility there are certain drawbacks to using it. 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. 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.

The foam never gets touched and never loses r value. Spray foam roofing has become a particularly popular solution in the commercial roofing industry but that doesn t mean it can t be right for your residential roof. Now more than ever architects are beginning to use materials and design features more common in commercial construction when building domestic homes so spray foam has a. As spray polyurethane foam spf roofing becomes more popular for commercial roofing the benefits of installing a spray polyurethane foam spf roofing system rather than another roof type are numerous in terms of installation performance cost and longevity.

Since a spray foam system consists of spray foam coating and granules after 10 20 years some of the coating and granules will naturally wear away. Misrepresentation of the spray foam insulation products used. Murmurs and hearsay about open cell spray foam insulation have been gaining traction for a while. Spray polyurethane foam technology does not have a solid track record for commercial roofing.

Over time trapped moisture can cause serious problems. It rots roofs people have told me. 17 august 2012 on the surface it sounds great. Insulating with spray foam insulation at the roof line will cause moisture problems with the roof sheathing.

A spray foam roof can be the last roofing system you ll ever need on a building. The essential guide to spray polyurethane foam roofing.