calculate side elevation based on roof pitch?

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calculate side elevation based on roof pitch?

Postby jman0war » Tue Jul 17, 2018 3:09 am

Hi i'm not sure how to phrase this.
But i have a Front and Rear Elevation and it shows the roof pitch 12" / 4"
So i think that's a rise of 4" of height for every 12".

But based on this, can i figure out what the roof would look like for a Side Elevation?


Re: calculate side elevation based on roof pitch?

Postby pbacot » Tue Jul 17, 2018 3:32 am

To figure it out, you might draw it? Not sure what would be the "side" elevation in your case. You're right about the pitch. Use the protractor along the eave line, type 4:12, and make an angled guideline. Draw or pull the ridge line up to the guideline. Alternately you can figure how high the ridge would be by multiplication. If the building is 20' wide, then the ridge is 40" higher than the eave, (assuming it's a typical gable or hip roof)
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