Lawrence James wrote:

The problem is that fiberglass is not water proof. Water migrates thru the
fiberglass and soaks the stringer. You can not seal a wood stringer with
fiberglass. Epoxy is more likely to keep the stringer dry but it is a lot
more expensive so nobody uses it. Even with epoxy any compromise is going
to let the water thru.


What's the impact of water on XL plywood?



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