Repair Foam Roof Blisters

If you currently have a foam roof and you notice protrusions or blisters then you should consider fixing your roof fairly quickly.

Repair foam roof blisters.

The majority of blisters do not pose a threat to the integrity of the foam roofing system. Type c typically left in place. No traffic you may want to leave it. This area can fill up with air or water to form a blister which looks like a bubble on your roof.

Also the roof will be cleaned thoroughly first. If the coating is secured over a dirty surface it can pull away from the foam and possibly peel away from the roof. Roof coating blisters in areas of adequate drainage are usually coming from below. Unnecessary repair attempts can result in leaks and premature roof problems.

What to watch for roof coating blisters in ponding water areas are due to moisture permeation from above. Type d typically left in place. Make sure you cure the cause type b blisters. Most industry warranties do not cover spf blisters as they generally cover only the water tightness of the polyurethane foam coating.

The decision to repair unopened blisters has typically been left up to the judgment of the contractor. This article provides some guidance on whether or not to repair blistered areas on different types of conventional low slope membrane systems. Polyurethane foam roofing can sometimes develop blisters the most common cause of which is due to the presence of moisture. Unnecessary repair attempts can result in leaks and premature roof problems.

Type a blisters should always be repaired as soon as possible. If left untreated a blister can grow larger and allow more moisture to get in so that the problem gets worse until more extensive repairs and possible replacement is necessary unless it pops. A roof blister is a raised area where there is a loss of adhesion of the roof. The unnecessary repair of blisters in a sprayed polyurethane foam roofing system can lead to leaks and premature roof problems.

If repairs are warranted it should be left to the roofing contractor to properly repair them. Repair in there is heavy traffic. Spf spray polyurethane foam is a mixture of two liquid compounds isocyanate and polyol which expands to 20 or 30 times larger than its original size by creating bubbles or air pockets. Foam roofs take a beating from our phoenix sun.

It is an insulator not a waterproofing system. If there is traffic on the roof fix it. Causes of blisters all conventional low slope roof systems experience blisters in some form. With proper care and repair your foam roof can virtually last forever.

The majority of blisters do not pose a threat to the integrity of the foam roofing system. Phoenix foam roof repair. Foam blisters fix it or leave it.