Quote:
Originally Posted by smooth move
i thought someone more knowledgeable than me would answer, but, guess not. i redid my deck once and did a pretty decent job. if it was me, i'd set my saw to the depth of the floor wood and cut out the bad spot. then replace it with a piece of marine plywood and glass over the patch using heavy mat. sand it down and paint.
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What I would do.?? I can't tell but it looks like you have mold in the picture. If so, this must be taken care of. Cut out as much as you can and if there "might" be any more, treat it with product made to kill mold.... not Clorox it only kills what is on the surface.
If the remaining wood around the edge of where you cut is dirty, it needs cleaning [sanding???] so the fiberglass will attach firmly.
Then after you get the plywood cut to fit the hole, I would put a layer of fiberglass on both sides and edges to seal the wood.
Then attach two [or 3] pieces of wood using screws along the top edge of the plywood and allow the wood to stick out about an inch. This will allow you to place the plywood in the hole, and the extra wood you added will keep the plywood from falling down in the hole.
Put the first layer of fiberglass [resin and glass mat] on the on the plywood... except not where the extra support wood is located. The resin should extend 2 to 3 inches onto the old flooring. After the fiberglass hardens, remove the support blocks and glass these areas.
If this repair is where a person will walk on the spot.... I would put 3 or 4 layers in that area.
Another tip..... only mix small batches of the resin, maybe a cup at a time until you get use to working with it. Cut the figerglass matting [enough to extend 2 to 3 inches out around the edges] before mixing the resin. Since this is a fairly large area, it might be easier to cut 2 or 3 pieces of mat to cover the area. Over lap each piece before putting on the resin.