Rafter Parts Of A Roof Frame

The central vertical post in a king post roof truss.

Rafter parts of a roof frame.

Rafters are sloped beams that run from the roof s ridge to the eaves. A chief structural member as it is a load bearing wall. There must be no gaps in the precision of the fit. The rafters and trusses are connected to the ridge board for a cohesive framework.

The bottoms of the rafters rest on the plate member providing a connecting link between the wall and the roof. The point at which all the raftersare attached to. It resembles real wood and particularly strong and stable for bearing heavy load. A piece of lumber laid horizontally on a wall to support the rafter.

The larger rafter that sits directly on a tie beam and used to carry a purlin. A roof truss is supported by the exterior walls and span the width of the building. Determine how many rafters you ll need for the roof. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

The rafters are really functional parts of both the walls and the roof. The miter is simply a plumb cut. For most load bearing requirements a roof truss will need to be placed every two feet along the walls. They provide the support for the external roofing material.

Rafters are fastened in one of several ways determined by the type of roof. Components of roof truss. Ridge board ridge beam. A ridge board is a horizontal member of the roof frame.

The structural relationship between the rafters and the wall is the same in all types of roofs. Parts of a roof. The roof rafters provide integral structural support to the roof. Ridge board v s beam.

If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Depending on how wide the home is you can divide the total length in feet by two to determine how many trusses will be needed. Supported by lally columns.

A roof truss is a structural unit designed to frame a roof and to support the roof material interior ceiling insulation and forces caused by snow rain and wind. A composite decking made of solid materials. Transfers the loadof the roof through the raftersto walls below. Ridge beam sits below the rafters.

Parts of a rafter the top of a a rafter usually joins a ridge.