Slope of roof


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Old 11-10-00, 02:16 PM
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What is the minimum slope required for good drainage on a single slope roof?
Building 25'x 25'.
 
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Old 11-10-00, 10:55 PM
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What kind of roofing will you be using? The answer to THAT question will answer your question.

If you are using standard comp. roofing (3 tab or architectural), then 3/12 is the minimum. If the roof will metal, then you can go as flat as 1/2 in 12, assuming that this will meet the snow and wind loads of what and where you are building. Best check with your local bldg. dept. first.
 
 

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