Hip And Valley Roof Design And Structure

Nov 7 2015 explore terri s board hip roof design on pinterest.

Hip and valley roof design and structure.

Some hip roof designs follow pyramid shapes whereas others may have more symmetrical structures. Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. The hip and valley factor varies according to the slope of the roof as shown in the table below. The design of hip roofs can follow triangular sides as well as a combination of triangular and trapezoidal sides.

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. Hip roofs can be designed over square shaped buildings as well as on rectangular ones. Divide the rise by the run the run is 12. It s also known as a cross gable roof since the home has a cross footprint.

See more ideas about hip roof design hip roof roof design. 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. A hip and valley roof may be part of an irregular structure. Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.

Gable and valley roof the gable and valley roof is a very popular roof design. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners. Like the hip rafter it extends diago nally from the top plate to the ridge. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

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. A valley rafterforms a depression in the roof instead of a hip. A hip roof design refers to a roof where the roof sides slope downwards from a middle peak with the rafter ends meeting the exterior walls of the house.