Filling Drill Holes in Fiber Glass Roof

Daveinet wrote:
I would say that putting bolts in the holes would be safer than essentially returning it to its original condition. A fiberglass patch will never be as strong as the original continuously woven fiberglass mat.

Dave is right, Marinetec, gel coat or any resin without continuous fiber overlapping the basic fiberglass roof would never be as strong and would be prone to cracking especially after a few years and the next owner walking on the repaired areas. The FG roof is thin compared to a hull or deck of a boat(.050 compared to .250 or so). I just filled 1/4 holes and multiple chips with gel coat and MEK on a boat and was able to put tape on the backside of hole to hold the gell coat until it cured. I don't know how to do this without lifting up the roof. I would not turn this into a WPA project. The MH is 18 years old just use screws with sealant, or Al plate, Eternabond tape, 5200 etc as others suggested.