Replies

1. 
   FatRoman | Apr 27, 2007 02:32am | #1

   Have a look at this current thread. Might be what you need.

   http://forums.taunton.com/tp-breaktime/messages?msg=89089.1

2. 
   cliffy | Apr 27, 2007 02:49am | #2

   You need to shorten the hip rafter by a length equal to one half the length of a line drawn across the hip rafter at 45 degrees. For a hip that is 1 1/2 inches wide this equals 1 1/16 of an inch. 

   This information is in any carpentry textbook used at colleges or apprenticeship programs.

   Have a good day

   CLiffy

3. 
   kpatrix | Apr 27, 2007 03:11am | #3

   The amount of the drop is not based on the run but rather the width of the hip as well as the pitch. Check out Joe's drawing in the other hip thread.

    

   John

   
   

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   Edited 4/26/2007 8:11 pm ET by kpatrix

1. 
   JoeBartok | Apr 28, 2007 05:31pm | #4

   For bastard Hips created by the intersections of unequal roof slopes it's also best to offset the Hip rafter in proportion to the plan angles. This locates the Hip rafter in relation to the where the roof slopes would intersect or "plane in" if the Hip rafter were backed.

   Proportional Hip Offset and Hip Drop

   Example Hip Offset-Drop Calculations

   Hip Drop for Offset Hip Rafter ... the animated version : the blue line labelled "tan Hip-Valley Pitch Angle" is the "Hip Drop".

    

   Joe Bartok

   Edited 4/28/2007 10:34 am ET by JoeBartok