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.
Repair curved edge of fiberglass roof on rv.
The only roof seams i used eternabond on were the front and rear caps.
If you knock a hole in a fiberglass laminate camper it not as bad as you d think to repair it yourself.
Older model rvs with fiberglass will probably oxidize faster than the newer models.
My first rv was a 2004 seabreeze lx 8341.
Just make sure not to s t r e t c h the tape while you put it on.
Just like epdm roofs fiberglass roofs oxidize.
As i remember the roof is a single sheet of fiberglass that wraps around the corners for the length of the coach.
Sand the repair until it s level and the edges blend in with the surrounding fiberglass.
Sand the surface of the repair smooth using 200 grit sandpaper on a sanding block.
Gelcoat has no structural value but protects the hull to give it color and shine.
We had a leaking roof in our first fiberglass rv because we mounted something in the ceiling forgot what it was maybe a lamp.
Clean the surface with a rag and acetone.
Roofseal white can be used over all types of roofs including epdm.
Rv roof repair recommendations for rv or trailer roofs and seam repairs we recommend eternabond eternabond s roofseal white is specially packaged for us with a white ultra uv resistant surface and wound in economical 50 rolls rather than 37.