Way up in the cuddy of my '88 Fourwinns 205, I had a soggy floor.
Cutting it open (2' by 3'), I found rotten 1/2 ply(covered by 1/4 poly).
The perimeter after that involves the ply sitting directly on a fiberglass hull chine, so I'm not working on anything beyond that at this time. The drainage was designed so if water got on the carpet in that low area, it drained to under the fuel tank area, where it dumps into the bilge, in the aft and the pump handles it.
Any water that seeps through the floor stayed in the foam, as there is no drainage through the small horizontal bulkhead that the drain went to, to reach the bilge.
The wet foam I pulled out was maybe 5% full of water(but enough to keep the ply wet) I put some of this foam underwater in a jar for a week(after letting it air dry), and it won't absorb water; I saw it do it under the floor-what is this?
Anyhow, the ply stringer(that runs right down the center of the keel), which has about 3/4" poly with mat on each side, was open at the top in several places. After 2 days, it seems dry, and hard, like new. Do I still need gitrot, or just let it dry and cover the top of it?
It dried, and is just as hard as regular ply now. Do I even need the ply, with the poly so thick on the sides?
Cutting it open (2' by 3'), I found rotten 1/2 ply(covered by 1/4 poly).
The perimeter after that involves the ply sitting directly on a fiberglass hull chine, so I'm not working on anything beyond that at this time. The drainage was designed so if water got on the carpet in that low area, it drained to under the fuel tank area, where it dumps into the bilge, in the aft and the pump handles it.
Any water that seeps through the floor stayed in the foam, as there is no drainage through the small horizontal bulkhead that the drain went to, to reach the bilge.
The wet foam I pulled out was maybe 5% full of water(but enough to keep the ply wet) I put some of this foam underwater in a jar for a week(after letting it air dry), and it won't absorb water; I saw it do it under the floor-what is this?
Anyhow, the ply stringer(that runs right down the center of the keel), which has about 3/4" poly with mat on each side, was open at the top in several places. After 2 days, it seems dry, and hard, like new. Do I still need gitrot, or just let it dry and cover the top of it?
It dried, and is just as hard as regular ply now. Do I even need the ply, with the poly so thick on the sides?
