Holes in Fiberglass Roof
Can someone suggest what might be happening with the fiberglass roof on my 2005 Newmar Kountry Star 5th wheel? I've owned it for about a year and a half, and see no evidence the roof has ever been coa...
Forum Discussion
HarryB1 wrote:
This second picture shows an area some distance away where I discovered a brownish spot similar in color to those in the first picture, but there were no cracks. I began to scratch at it with my fingernail, and after discovering the surface felt soft, it came off with very little effort, resulting in this hole.
The rest of the surface of the roof seems to be quite solid. I can put an indent into the fiberglass with my fingernail, but nowhere does it feel soft like it did at this spot.
Is this an indication the whole roof is beginning to fail, or something else?
If this is truly fiberglass, then it is built like a boat, probably like the deck/roof; resin and 'glass over plywood or foam core.
My guess is that those spots are "dry spots" where the 'glass was not thoroughly wetted. It should be repaired using the same steps you would for boat repair. It dies seem odd that a fingernail can dent it as fiberglass cures very hard.
DO NOT COAT YOUR ROOF ! Take it to somewhere that does 'glass boat repair. Worst case, part of the substrate/ core material will have to be replaced then layers of resin and 'glass applied.
