Quote:
Originally Posted by Lee
Good effort Barry - did you finish protect the exposed edges of the ply deck at all?
I only ask because the obs I built in 2007 has had significant rot in exposed endgrain areas of (heavily painted) exterior ply. I'm busy at present replacing some rotted panels (luckily fascia only rather than structural).
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Yes, this is a real problem, ply endgrain wicks in water and lead to delamination, at the very least black fungus. Marine ply helps prevent delamination but should still be sealed on the ends ( a good boat building epoxy is great sealant). I had a little but of end grain wicking on my obs floor at the southern wall junction, but caught it quick and duct taped over that section, still it took me six months to dry it out completely. A moisture metre helps locate it.