Su Sian had a cabin with solid mahogany frames, plywood sides and two layers of plywood for the roof. The cabin had a very attractive curving sweep to the sides and roof and almost looked oriental. The roof had a layer of bonded canvas which was in very poor condition because of many layers of badly applied paint. In 1997 I stripped off the canvas and the plywood underneath was in good condition with attractive grain. After consulting a company in Southampton that specializes in the fibreglass coating of wooden yacht hulls I sanded the roof, applied a coat of epoxy primer, a layer of fibreglass matting and two more coats of resin. After a final sanding and a coat of anti UV varnish, if I say it myself, the roof looked wonderful and during a three year trip cruising the canals received many admiring comments.
Oops - one picture too many - I think that must have been a congratulation for a good job on the roof