Hip Roof Framing Section
Hip roofs are constructed with four rafters that usually meet on a ridge board that is situated at the middle portion of the roof.
Hip roof framing section. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. A dutch hip roof is a combination of both the hip roof and gable roof features. Chapter 17 basic roof framing. Dutch gable roof a variation of the hip roof that includes a small gable section on the upper portion of the roof.
The area where one section of roof meets other section is considered as the hip and the hip roof generally has very uniform angles without any vertical end. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Also known as a clipped gable or jerkin head roof. How ever some of the basic data used is different.
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. A hip roof or a hipped roof is a style of roofing that slopes downwards from all sides to the walls and hence has no vertical sides. Part of a framing plan for a hip roof is shown in figure 18 3. The gable portion of a dutch hip roof is usually placed at the end of the roof ridge and sits on top of the plane of the hip roof.
An example of each is shown in figure 2 1. Roof framing rafter layout. Remember that a line on the framing plan indicating a rafter represents the total run of the rafter but not its actual length. It is sometimes also referred to as a dutch gable roof precisely because it contains both roof style features.
From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark. The hip roof is the most commonly used roof style in north america after the gabled roof. Gable a gable roof has a ridge at the center and slopes in. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
This style of roofing became popular in the united states during the 18 th century in the early georgian period. This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement. 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. In this section we ll cover the most common types of roofs and basic framing terms.
Half hip roof this is an add on to a gable roof where the end of the gable includes a small hip roof section that slopes toward the ridge.