Just like epdm roofs fiberglass roofs oxidize.
Repair curved edge of fiberglass roof on rv.
Roofseal white can be used over all types of roofs including epdm.
Repair shops will tell you to contact your insurance.
We had a leaking roof in our first fiberglass rv because we mounted something in the ceiling forgot what it was maybe a lamp.
Sand the surface of the repair smooth using 200 grit sandpaper on a sanding block.
The only roof seams i used eternabond on were the front and rear caps.
Sand the repair until it s level and the edges blend in with the surrounding fiberglass.
Just make sure not to s t r e t c h the tape while you put it on.
Older model rvs with fiberglass will probably oxidize faster than the newer models.
If you knock a hole in a fiberglass laminate camper it not as bad as you d think to repair it yourself.
As i remember the roof is a single sheet of fiberglass that wraps around the corners for the length of the coach.
In most cases a fiberglass roof leak comes from areas where the fiberglass has been cut into to add on items like overhead fans hvac systems etc.
How to repair an rv fiberglass roof.
Gelcoat has no structural value but protects the hull to give it color and shine.
Clean the surface with a rag and acetone.