If the rubber is bonded prior to the adhesive drying then bubbles will appear under the membrane caused by the trapped vapour from the adhesive.
Rubber roofing problems drip rubber.
The adhesive is solvent based and must be allowed to gas off and become touch dry prior to bonding the membrane into position.
At that point leaks start penetrating these weak points.
Three most common problems with rubber roofs is improper installation shrinkage and the seams.
Vapour from contact bonding adhesive.
Most people refer to a flat roof as a rubber roof.
Contact bonding adhesive is used for bonding the rubber membrane on upstands and around the perimeter of the roof deck.
The main reason for such popularity of rubber roofs is the lower initial price tag.
The system is not attached mechanically.
Shrinkage is a particularly serious problem on a larger size roof.
One of the biggest reasons a rubber roof can fail is from improper installation.
Rubber will inevitably shrink leaks another inherent design problem is that after a few years this roof membrane simply begins to shrink slowly pulling away from parapet walls flashings corners drains and other areas.
Epdm roofs are fully adhered or as many call it glued down.
However rubber roofs have many inherent.
Rubber roofing epdm single ply membranes is the most common flat roofing system in new england ma ct nh ri etc and the rest of us flat roofing marker.