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    Black9122's Avatar
    Black9122 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 2, 2014, 09:35 PM
    My ridge board is 2 ft above my top plate what will my pitch be?
    Trying to figure out roof pitch will it be a 4/12 or 5/12. My ridge board is 2 ft higher than my top plate
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    Dec 2, 2014, 10:48 PM
    The height (in inches) divided by the run (in feet) equals the pitch.

    24 / 7 = 3.428
    Pitch is 3.43 in 12.

    In reality the pitch will be slightly less. If you are using 2x4 rafters and cut a notch to the center of the rafter,
    the difference in the height of the top edge of the rafter at the ridge will be 22.5" (24 - 1.5) above the top edge
    of the rafter at the wall, giving you a 3.21 in 12 pitch (22.5" / 7).
    creahands's Avatar
    creahands Posts: 2,854, Reputation: 195
    Ultra Member
    		  
    #3

    Dec 21, 2014, 08:55 AM
    In order to give you an exact answer, we need to know the run as well as the height. If the ridge board is located at center between the 2 outside walls then run is 1/2 that distance.

    Chuck
    joypulv's Avatar
    joypulv Posts: 21,591, Reputation: 2941
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    #4

    Dec 21, 2014, 12:35 PM
    I saved this from years ago. Not exactly a pitch question, but lots of good info.
    https://www.askmehelpdesk.com/constr...rs-137845.html
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