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hollywouldgal wrote:
How far can a flat roof overhang extend without posts?
   Comment   January 27, 2011
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Ronique Gibson
This depends on the structure that the roof is comprised of. A metal roof can cantilever further than a wood framed roof.

Without support probably 24"-30" overhang. Although this will also depend on the loads that are put on your home. If you live in a very snowy or windy climate, this cantilever depth may need to be less.

A structural engineer could be definitive about your specific application, there are a lot of variables that you would need to consider.
January 27, 2011 at 6:39pm   
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modern house architects
We Achieved This By Wrapping Mahogany Over Steel I-Beams.
The Rule of Thumb is 1/3 Cantilever to 2/3 Supported.
On Occasion a Structural Will Allow For More Cantilever if the Other End is Restrained for Uplift.
January 27, 2011 at 7:57pm   
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