Rubber Roof Blistering

Blisters can trap moisture and draw in more even when it doesn t rain.

Rubber roof blistering.

This area can fill up with air or water to form a blister which looks like a bubble on your roof. Stop the problem at the source. Fixing bubbles and blisters in an epdm roof. A roof blister is a raised area where there is a loss of adhesion of the roof.

Bonding adhesives are used to attach epdm membranes to upstands and around the roof perimeter. Workers should always inspect the surrounding areas for tears punctures or any other anomalies that could let in water. 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. Roof blisters can be caused by any number of problems.

Items you will need putty knife rv sealant drill bit to match existing screws. Heng s fibered roof coating is not suitable for rubber roofs or homes with asphalt roofing. Thick white colored coating with an amazing ability to conform to and protect against all weather conditions. Blistering blisters form when there are pockets of air or moisture trapped between layers of your roof s membrane or between the membrane and the roof deck.

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. One problem you might come across is bubbles or blistering in your epdm roof. This can occur for two main reasons. In severe cases the membrane will actually crack when the pressure becomes too great.

Vapour from bonding adhesive. These can be caused by a variety of issues which are all avoidable if the roof design is correct and the membrane is correctly installed. It is a non asphalt high quality chemically engineered roof coating that contains long fibers pigments and non drying resins. All conventional low slope roof systems experience blisters in some form.

As the sun heats the roof those pockets expand and stretch the membrane.