Rubber Roof Bubbling After Applying Lap Sealant

This type of bubbling lifting can occurr on warm deck roof designs where the epdm membrane is fully bonded onto either a timber deck or directly onto the insulation.

Rubber roof bubbling after applying lap sealant.

If the roof structure under the insulation is damp or the boards are fitted with large gaps the trapped moist air will expand when the sun warms the roof and appear along the. Epdm roof acrylic coating part 2 of epdm roof coating system. Epdm rubber roof repair membrane. What had happened of course was where the epdm had stretched as the old lap sealant was removed it had pulled away from the plywood roof about an.

The new lap sealant apparently had shrunk some as it dried and caused the bubbles. The first 5 years would include parts and labor. Fiberglass clean prep. The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to.

One such brand is epdm roof cleaner. Dicor 501lsw 1 self leveling lap sealant 4 pack item weight 3 3 pounds product dimensions 22 25 x 13 75 x 9 inches item model number 501 lsw6 is discontinued by manufacturer no manufacturer part number 501 lsw6 folding no cover included dicor 501lsw 1 self leveling lap sealant 4 pack. Here s what we wrote about the subject shortly after we put the stuff on the roof. Not all new dicor lap sealant products work with every roof cleaner or sealant removal.

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. Also isopropyl alcohol may react with dicor products if not given enough time to evaporate away. Another way to. Here s a step by step on how we used heng s rubber roof coat to recoat an aging travel trailer roof.

This week we climbed up on the roof to check all the seams and reapply dicor lap sealan. The most common cause of roof bubbling is poor installation of the roof. We ll tell you how things have shaped up in the six years since we treated the roof down farther in this article. Years 6 12 are pro rated for material replacement only no labor.

So i removed the new sealant and unscrewed the vent from the roof and gently pulled it up. It does not cover the original installation or the glue lap sealant butyl tape to install the roof. Once again spring is upon us and so are those rv maintenance chores. Elastomeric metal rv roof coating.

Epdm self leveling sealant for manufacturers. Epdm acrylic rubber roof coating cleaner activator. Fiberglass rv roof coating.