Roof Deck

05-13-01, 02:03 AM

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I have a small inclosed back porch, about 150 square foot, and it has rolled roofing on top. I would really like to build a deck over the top of it, but I want to make sure I do it right and don't run into any building violations or structural problems. Can it be built so that the water goes through it (no pitch on deck), and runs off the original roof?

Thanks for any ideas. Rick

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05-16-01, 11:09 AM

Chaz

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If you do it, you should make sure the roof is in as good a condition as you can before you build the deck. Otherwise, you'll need to scrap the deck when the roof leaks.

We've got a deck on a slightly sloped roof, and the other half of the roof has leaked. It's a cheap rolled roof. We're in a dilemma about how to fix the roof ... removing and replacing the deck will increase the cost of fixing the roof by 5X ...

05-16-01, 11:56 AM

Mike Swearingen

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I would install corrugated aluminum roofing over that rolled roofing, caulk the overlaps, and flash and tar the upper roofing edge before building a deck over it.
Nail it with aluminum nails with rubber gasket rings under the nail heads.
That should last you for many, many years.
Good luck!
Mike

[Edited by OldGuy on 05-16-01 at 03:02]