Spray Foam Roof Disadvantages

Advantages disadvantages of foam spray foam insulation has many advantages over alternative insulation products such as fiberglass and cellulose.

Spray foam roof disadvantages. Benefits and pitfalls of spray foam insulation according to the us environmental protection agency epa spray foam is recognized as a premier alternative to the batt insulation of years past. 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. There is no need to remove the existing roof. Spray foam roofing or spray polyurethane foam spf roofing is a technique of building construction walls or roofs by using spray polyurethane foam.

Spray foam roofing cons. If foam insulation is used throughout the entire home it seals off all air infiltration by sealing the voids throughout the insulated area. Quick roofing installation installing foam roofs is quick and easy. The relatively costly application for example can also save money by lowering your energy bills and enabling you to add your own insulation with a contractor s help.

Easy to maintain with foam roofs homeowners do not need to undergo the annual repair and maintenance. At year 10 20 a contractor will add more coating and granules. 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. Like many other building materials insulating spray foams for use on roof rafters and attic surfaces come with advantages and disadvantages.

The first application of coating is usually applied at a thickness of 20 30 mils. It is even easier when the foam installation is an upgrade. 17 august 2012 on the surface it sounds great. Posted by heather johnson in common roof problems.

Here are some negatives to spray foam roofing that might make you want to consider a different option. Spray on roofs can be expensive to get installed but this can easily pay for itself and more in the long run when you factor in how long it lasts as well as the amount you should save on energy costs. Serving as both an air sealant and an insulator spray foam is estimated to reduce the standard hvac sizing by about 35 on average. Shingle warranty after spray foam attic insulation.

Disadvantages of spf roofing application. Spf is a type of plastic that goes from liquid to solid in a matter of seconds that increases in volume by approximately 30 times as it dries. A quickie roof and good r value. The disadvantages of spray foam insulation have recently come to the forefront with multiple studies and research collected from the environmental protection agency epa which found that when spray polyurethane foam is being used that the worksite or home should be restricted to people who are not wearing appropriate personal protective.

The foam never gets touched and never loses r value.