A roof blister is a raised area where there is a loss of adhesion of the roof.
Rv roof bubbles.
Certain brands of rv roofs are plywood that is stapled down on the edges.
This area can fill up with air or water to form a blister which looks like a bubble on your roof.
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.
It seems to me to be a case of inferior workmanship but i would like to get another opinion before i confront the person who did the work.
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.
Ron rubber roof bubbles wrinkles coming loose have been referenced a few times on this forum as noted by oldguy in post 2.
The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to.
Having said that fiberglass rv roofs require less maintenance than rubber rv roofs which makes them preferable for some campers.
I recently had a new rubber roof put on my class c motorhome.
Rvroofmagic is rv roof sealant specially formulated for rv s trailers and mobile homes that demand a highly flexible material as our customer travel throughout the year.
Fiberglass this type of rv roof is hard to the touch and is a bit more rare than a rubber rv roof because the material adds cost and weight to the rv.
This is certainly not just a gdrv item as for decades in our travels we have seen rv after rv traveling down the highway with particularly the front area blown up like a big bubble.
With over a 15 year history of success rvroofmagic has helped thousands get a new roof for a fraction of the cost of roof replacement.
With time the wood flexes pops loose and you will see clear defined lines on your rv roof with a slight bubble in the rv roof.
Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail.
If the membrane is intact you do not need an rv roof replacement in this situation.