[JohnB]

IF there are not holes and cracks, and IF it was laminated completly, it holds up alot longer than plywood. On my fuel hatch, underneath, they missed laying some glass on the front edge, underneath, and water got in there. 90% of it was just fine after 20 years, but the front edge rotted, and was soft. Best thing to do is check with a moisture meater, if it's wet, the corring will separatte from the laminate, and it will weeken.