Rafters, Ridges Height and Overhangs.
Some additions require matching existing ridge heights and overhangs. The new addition rafter pitch and walls have to be figured in the field. Some architects can give you an approximate but for me it’s more accurate in the field.
This drawing shows for this situation. There’s other ways to do it when you have a fixed wall height and fixed ridge height to match.
What I should also mention is that the existing house is a different pitch. This method works no matter what dfferences the two pitches are and what size the new addition rafters are.
Alot of old homes have 2×6 rafters and alot of new additons have 2×8 or 2×10’s so consequently the new wall heights vary.
Joe Carola
Edited 12/13/2002 12:32:10 AM ET by Framer
Replies
Joe, you've sent that up as a *.jsd file - not a common drawing file, probably native to your drawing program. Try to see if the program you have it in will "save as" a JPG, GIF, or BTMP which are the common graphic files that every one can read. and then post again.
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Piffin,
Made a mistake.
Joe Carola