I need to replace the previous owners botched ply and fiberglass coachroof repair. I am considering Western Red Cedar tongue and groove covered with canvas. The coachroof was origionally 1/2" plywood and I am not sure what it was origionally covered with.
Am I asking for too much trouble varying from the origional design for plywood?
The boat is a Cheoy Lee Burmuda 30. The coachroof is in two parts, roughly 5'X8' forward, and 6'X6' aft. Roof beams, 1-1/2"x1" are placed 10"oc and have a good camber.
I know that the tongue and groove would need to be thicker than the plywood. Maybe laterally strengthen the roof beams around the mast? ...is this is more complicated?
If I did go with toungue and groove, what should the plank width be? Is there a reason the width should be narrow (2") or wide (4")? Or is this solely a matter of taste? Is there a "for the sake of tradition width?"
Whenever in my bunk, I look at the hardened epoxy drips, checked fir plywood, missed screws partly angled out of the beams, exposed plywood seams, and think how nice tongue and groove would look.