Rafters are fastened in one of several ways determined by the type of roof.
Rafter parts of a roof frame.
A roof truss is supported by the exterior walls and span the width of the building.
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.
Ridge beam sits below the rafters.
The roof rafters provide integral structural support to the roof.
There must be no gaps in the precision of the fit.
Transfers the loadof the roof through the raftersto walls below.
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.
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.
Components of roof truss.
A ridge board is a horizontal member of the roof frame.
The rafters are really functional parts of both the walls and the roof.
Ridge board v s beam.
It resembles real wood and particularly strong and stable for bearing heavy load.
Determine how many rafters you ll need for the roof.
Parts of a rafter the top of a a rafter usually joins a ridge.
The miter is simply a plumb cut.
The bottoms of the rafters rest on the plate member providing a connecting link between the wall and the roof.
Parts of a roof.
The central vertical post in a king post roof truss.
A piece of lumber laid horizontally on a wall to support the rafter.
Rafters are sloped beams that run from the roof s ridge to the eaves.
The rafters and trusses are connected to the ridge board for a cohesive framework.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
Ridge beams are long rectangular rigid pieces of wood metal or stone which are placed horizontally along the ridge of the roof.
For most load bearing requirements a roof truss will need to be placed every two feet along the walls.
The structural relationship between the rafters and the wall is the same in all types of roofs.
A chief structural member as it is a load bearing wall.
The point at which all the raftersare attached to.
A horizontal timber or metal resting at the peak of the roof.
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 composite decking made of solid materials.
Ridge board ridge beam.
They provide the support for the external roofing material.
