Hip And Valley Roof Framing

Attach 4 6 centering rafters and lift the ridge beam into place.

Hip and valley roof framing.

Divide the rafter length by 12 of run to calculate the roof ratio multiplier. And regular california valley sleeper head tail cuts. Divide the rise by the run the run is 12. Rr and ll ratios.

Roof framing geometry kernel rafter lengths roof ratio multiplier. A valley rafterforms a depression in the roof instead of a hip. The common rafter length can be calculated by the roof ratio length per 12 of run. A hip and valley roof may be part of an irregular structure.

For any roof slope expressed as x in 12 rise in run the hip and valley factor is determined by finding the square root of rise run 2. This type of roof is also called broken back hip and valley roof because the main hips are intconeected by the rafter of gables on one side and the rafter of the valley on the other. Now draw the centerlines for all rectangles that are formed inside. Similarly hip and valley rafters provide the point of connection for roof rafters framed at angles.

Http amzn to 2sfscbz swanson speed square http amzn to 2svgnvt 16 x 24 framing square starrett http amzn to 2sflm5v milwaukee circular saw http amzn. First of all you need to design the layout of building. Like the hip rafter it extends diago nally from the top plate to the ridge. The first step in the process of erecting the hip roof is to get the ridge beam into place at the top of the roof.

Everything you need for standard roof framing situations. Hip and valley roof framing is no so complex as compared to hip roof framing procedures. Hip rafter ratio length multiplier hrrlm 18 12 1 5 common rafter length multiplier crlm 13 4164 12 1 11803. The hip and valley factor varies according to the slope of the roof as shown in the table below.

Here roofs are constructed with an angle of 90 degrees. Now outline the biggest rectangle inside the building layout. A hip rafter is called for only when framing a hip roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. Side and bevel cuts on the hip valley rafter tail with square hung fascia.

However since there is some load transfer with these members the code requires a nominal 2 thickness and bracing to a load bearing partition at the upper end or to be designed as a beam with proper supports. Stick framing roofs also includes the eight mainstay charts found in a roof cutter s secrets including.