Framing A Hip And Valley Roof

Locate a centerline at the middle section.

Framing a hip and valley roof.

Subscribe to this old house. Divide the rafter length by 12 of run to calculate the roof ratio multiplier. Hipped roof construction can seem quite complicated to grasp at first but i m going to break it down and explain each area in detail. Roof framing geometry kernel rafter lengths roof ratio multiplier.

Hip rafter ratio length multiplier hrrlm 18 12 1 5 common rafter length multiplier crlm 13 4164 12 1 11803. Tommy silva gives the apprentices a lesson in hip roof framing. Start with a layout of a rectangular shape building. Now draw a 45 degree line from each corner toward the centerline that can help to establish location specifications for.

I ll start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully i ll make it really clear and easy to understand exactly how to set out measure cut and install hip and valley roof rafters. Draw a ridge line between the intersection points of the hip rafters.