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Whatever you do, DO NOT, DO NOT, DO NOT!!! allow the teak planking to be fastened THROUGH the top layer of glass fibre. No matter how much sealant is promised and no matter how good they claim it will be do not allow the screw fasteners to penetrate the top GRP layer.
It must NOT be tacked through it. Into it... which will mean thickening it probably... but not through it.
The other way is to stick the planks onto the deck and use no fasteners, but the planks have to be thinner as they cannot be fastened. They don't leak though... it is promised anyway.
I have learned the fastener problem the hard way.... they leak once the deck wears, and leak, and leak, and leak.
Last edited by Rockter; 05-29-2008 at 05:06 AM.