09:47AM | 04/22/03
Member Since: 04/21/03
1 lifetime posts
I am building a childern's play house and am having probles with the angle of the roof where two roofs meet. Both roofs are 45-degrees and meet at a 90-degree angle. I have one roof (roof a) attached and need to determine the angle of the end cut where the second roof (roof b)meets the first. The roof is made of 1x6's - it is these boards that I am trying to cut. Any help would be greatly appreciated.

roof a /\_________ 45o
/ \ /\ roof b
/ \ / \
/ \___/____\
| | | |
| | | |
| | |

Mark Hammond

07:38AM | 04/23/03
Member Since: 05/09/01
246 lifetime posts
If anyone else wants to take a stab at this I welcome their input but the drawings that I got on the site are all but useless. If you can send a better drawing or a picture of the structure you plan to build I will gladly help with an answer....MJH

doug seibert

04:53AM | 04/24/03
Member Since: 08/10/02
843 lifetime posts

Sounds like a T-shaped floor plan.......?

Two intersecting gable roofs...Valley....?

You need the valley rafters.......valley jack rafters......My "old school" framing book goes on for about 16 pages on how to calculate and cut these..........

A framing square has all the info printed on it but you need a book to read it...Good luck!

Question......Since this is a the roof constructed of just a "skin" or are there roof rafters involved??????

[This message has been edited by doug seibert (edited April 24, 2003).]


10:27PM | 04/24/03
Member Since: 12/27/02
543 lifetime posts
You're asking for the cheek cut on a california valley jack... for a 6/12 set the circular saw at 29o and mark the side of the 2x6 with the level* line of the 6/12 on the framing square (*the 12 side). Once you've found the length of your first one the jack step for 16 o/c (I think) is 17 7/8


10:32PM | 04/24/03
Member Since: 12/27/02
543 lifetime posts
..oh by the way the cut-offs can be used on the opposing side, so figure that into the rafter lengths you have.
You can do that by multiplying by the # of jack steps... say your first is 17 7/8" the 5th will be 89 3/8" ..right?

Alter Eagle Construction & Design


06:39AM | 04/29/03
Member Since: 12/27/02
543 lifetime posts
How have you made out?


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