Blistering In Tpo Roofing

Tpo also lost its competitive advantage by using peel stick flashing.

Blistering in tpo roofing. Must see cutting open leaking roof blister on a brand new flat roof in toronto leaking flat roof duration. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. These bubbles of trapped air moisture can be caused by a variety of issues which are all avoidable if the roof design is correct and the membrane is correctly installed. Roof bubbling is just what it sounds like spots where the rubber has lifted off the surface of the roof and formed a bubble or blister.

The expansion of the gas creates a pressure within the system that pushes the plies apart. Now tpo is more like epdm rubber with heat welded field seams. The most common cause of roof bubbling is poor installation of the roof. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.

This area can fill up with air or water to form a blister which looks like a bubble on your roof. In summary blistering and bubbling are common coating problems that occur for several different reasons. While this article presents and discusses the osmotic mechanisms that produce blisters bubbles have several causes. 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.

Blisters are the most common roofing problem. It s no longer a truly heat welded system but is a hybrid of welded plus glued roof. The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to. Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail.

At 1 66 per square foot generic tpo is 13 more expensive than high quality brand name pvc so the price war is lost. In bituminous systems voids can be created by improper adhesion during application. What it comes down to is science versus commonality and companies warranties. Tpo roofing systems 101.

A roof blister is a raised area where there is a loss of adhesion of the roof. Membrane systems are most susceptible to blistering because blisters are formed by voids between the plies or at the point between the substrate and the membrane. Skyluxe roofing and sheet metal 754 views 0 57. Blistering roof shingles have been and continue to be the most controversial subject matter in the roofing industry.

There are differing opinions as to the damage that can result from blisters and bubbles. The heat of the sun during the day causes the gas to expand. Causes of blisters all conventional low slope roof systems experience blisters in some form.