As the air flows across the top of your camper it creates a low pressure area just above the roof.
I have a bubble on my rv roof material.
An epdm rv roof ethylene propylene diene monomer or a tpo rv roof thermal poly olefin.
Ron rubber roof bubbles wrinkles coming loose have been referenced a few times on this forum as noted by oldguy in post 2.
Does it eventually deflate when stopped.
The rv manufacturer simply didn t apply the adhesive evenly or left some dirt on the roof that the adhesive couldn t stick to.
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.
I two or three small pin holes where mosture could get in and make the bubbles.
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.
Whilst bubbles or blisters on a one piece epdm roof can be unsightly they will not cause the rubber membrane to fail.
Tom bubbles in epdm rubber membrane are typically caused by improper preparation during installation water intrusion or the use of incorrect adhesives.
This area can fill up with air or water to form a blister which looks like a bubble on your roof.
May just be a bernoulli effect.
Each type of rv rubber roof requires slightly different maintenance so be sure to consult your owner s manual for the proper way to care for your roof.
What is you read more.
Rubber tpo probably the most common material for an rv roof and actually comes in two different types.
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.
Should i cut the bubble in the middle and then tape and seal it.
Bubbles can also be caused by water getting under the membrane which shouldn t happen with a good installation but may happen if any of the seams develop holes.
Vapour from contact bonding adhesive.
The pressure in the camper will be greater and may be causing your rubber roof to inflate from the inside out due to the pressure differential.
A roof blister is a raised area where there is a loss of adhesion of the roof.