Fiberglass as a replacement for EPDM
Has anyone every replace an EPDM/"rubber" roof with fiberglass ? Once the old roof, adhesive, roof mounted vents/air conditioning and caulk are removed, I would think it would not be too bad of a job...
Forum Discussion
goducks10 wrote:
Fiberglass would crack as soon as you stepped on it. The 3/8" ply on the roof is soft and flexes. Seems very labor intensive especially making the curve look nice on the roof edge to side wall.
I'm not sure about that. The process described is pretty standard for plywood boats and strip canoes these days, and lighter-duty ones do flex as they go through the water. The fiberglass is bonded to the plywood with the resin, so they flex together. The joints in the plywood would need to be much more tightly bound together, either by scarfing the sheets or by putting on a backer strip on the other side of the joint to join them solidly together so they don't shift in relation to each other.
I don't see any real advantage over traditional RV roof techniques. Using epoxy resin, it would need a lot of rather expensive materials to cover the roof, and be a lot of unpleasant work. Repair work would also be non-standard, and you'd still have to seal around all the vent and other openings and at the edges where the roof joins the walls, and these are the most common trouble points anyways on any RV roof.
