Rubber Roof Blistering

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

Rubber roof blistering.

Blisters can trap moisture and draw in more even when it doesn t rain. Fixing bubbles and blisters in an epdm roof. The bubbles are trapped air or moisture. This can occur for two main reasons.

Vapour from bonding adhesive. A roof blister is a raised area where there is a loss of adhesion of the roof. 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. Thick white colored coating with an amazing ability to conform to and protect against all weather conditions.

Items you will need putty knife rv sealant drill bit to match existing screws. Bonding adhesives are used to attach epdm membranes to upstands and around the roof perimeter. To permanently repair blisters it s necessary to cut away the blistered area down to the insulation. Stop the problem at the source.

All conventional low slope roof systems experience blisters in some form. Heng s fibered roof coating is not suitable for rubber roofs or homes with asphalt roofing. 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. One problem you might come across is bubbles or blistering in your epdm roof.

In severe cases the membrane will actually crack when the pressure becomes too great. 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. This trapped moisture can either leak into the building or collect inside the roof which can lead to extensive damage.

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.