fiberglass vs composite roof
any thoughts on pluses and minuses of each. is the fiberglass roof worth the money??
Forum Discussion
cbigham wrote:
Looking for more, eh? Some , certainly not all, fiberglass roofs are very, very thin. On a recent shopping trip for a class c I got on the fmroof of a rv with a fiberglass roof, hand could easily dent and it sprung back armrest near the roof where sheeting curved to connect to the rest.
Not all fiberglass roofs are equal.
Agreed ! IMHO a fiberglass roof that easily buckles either has rafter/trusses too widely spaced AND/OR roof decking that is too thin AND/OR the fiberglass cloth is too thin. 16"-24" "on center" spacing for rafter/trusses is the rule of thumb on houses and 7/16" decking. With 22 oz. triaxial glass cloth you could probably reduced the decking to 3/8 plywood.
The big win on fiberglass is durability against rips/tears although I am sure fiberglass require more labor than an EPDM/rubber roof.
