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# Construction math

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What is the area of a roof on a 30 foot by 40 foot house with 12" rake O.H. (Over Hang), 5/12 slope? Please show problem in detail.

##### Solution Summary

This shows how to find the area of a roof with a given overhang.

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One piece of information that was omitted was the orientation of the roof with respect to the house. (I.e. if rain fell on the roof, would it eventually fall in front of the long side or the short?)

I am going to assume that the side view of the house is as such:

30'

(The single ...

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