My architect sent through initial concepts for a remodel on a 2 flat property. My plan is to free up more internal space on both floors by replacing the internal stair access to the top flat with external access to a deck and then the entrance.
The deck was to sit over a bit of roof from downstairs that juts out further than the downstairs space.
My architect pointed out we'll need a waterproof deck. "Unfortunately with the relative first floor to roof levels, the proposed deck would be required to be constructed as a waterproof enclosed butynol deck. We could not span the new deck over the existing roof."
A cursory Google of "enclosed waterproof decking" dug up a lot of articles about water ingress issues they historically have caused, particularly with apartments.
Is this still a problem with today's materials and design code? Enclosed decks on buildings are all over the world so I would have assumed this is a solved problem by now but...
Any insights much appreciated.
The deck was to sit over a bit of roof from downstairs that juts out further than the downstairs space.
My architect pointed out we'll need a waterproof deck. "Unfortunately with the relative first floor to roof levels, the proposed deck would be required to be constructed as a waterproof enclosed butynol deck. We could not span the new deck over the existing roof."
A cursory Google of "enclosed waterproof decking" dug up a lot of articles about water ingress issues they historically have caused, particularly with apartments.
Is this still a problem with today's materials and design code? Enclosed decks on buildings are all over the world so I would have assumed this is a solved problem by now but...
Any insights much appreciated.
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