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Flat Roof Poor Drainage

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Old 09-28-2010, 07:55 PM   #1
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Flat Roof Poor Drainage


I was wondering if there a concrete building code requirement for the flat rubber roofs to have an appropriate drainage. The situation with our building is such that the water doesn't drain at all, because the pitch isn't designed correctly. So I am looking for ways to put some pressure on the contractor to fix this. I am in Massachusetts and I found this section of code around roofs, but the language is too technical for me to make sense of it (see the attachment). Can please someone help?

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File Type: pdf Roofing Building Code.pdf (169.5 KB, 505 views)
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Old 09-28-2010, 08:43 PM   #2
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Re: Flat Roof Poor Drainage

Hey there before we move on why don't you stop off in the intros section and introduce yourself. thanks


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Old 09-28-2010, 08:57 PM   #3
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Re: Flat Roof Poor Drainage

You may want to take this topic to DIY. It doesn't seem like your a GC, and I doubt that you are even a painting contractor
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Old 09-29-2010, 03:06 PM   #4
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Re: Flat Roof Poor Drainage

Roofs with no drainage are ok. Infact during WWII roofs were designed to hold water incase the Nazi's bombed us, from air all the standing water on the roofs would look like fish farms or water treatment facilities, not weapon making factories.

What type of roof membrane was installed? Some have no problem holding standing water, and have no invalidation in their warranty. However some do require positive drainage.

What makes you think you have improper drainage or that it's the contractor's fault? Maybe it's the architect's fault for improper design.
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Old 09-29-2010, 03:28 PM   #5
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Re: Flat Roof Poor Drainage


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