[Greenbuilding] Decking a Boathouse Roof

[Lynelle Hamilton]

I have a boathouse on my property with a flat roof that, surprisingly. 
leaks.  I would like to put a deck on the roof, as the structure is 
strong enough to support it. However, I am stumped as to the best 
material to use to get a durable and waterproof surface that is 
walkable. My carpenter suggests rubber membrane, the styrofoam, then a 
wood deck, but I have concerns about the weight, plus the weight of 
folks on it. As well, maintenance might be an issue. Duradeck, etc are 
seem hardly to be green alternatives. Any ideas, folks?

Many thanks in advance.

Lynelle



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