Transfers the loadof the roof through the raftersto walls below.
Roof framing details.
Parts of a roof.
Details for conventional wood frame construction.
Skillion shed style roof framing the skillion and shed style roofs are framed with a single slope 2 4 or 2 6 or thicker rafters spanning from the low wall to the high wall.
The rise or height of the roof at its peak is the altitude of the triangle.
The rafters carry the applied loads to the exterior walls.
The rafters are usually positioned directly above the wall studs.
Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
Define ridge board rafter hip valley sheathing fascia soffit dormer and pitch.
The function of each component is.
It is simple in design economical to construct.
If you plan to have eaves to protect the shed walls make sure you add the extra length when measuring the rafters.
The roof sheathing consisted of inch thick wide pine boards nailed to the purlins and thick enough to resist much sagging.
Rafters act more like the top chord of a roof truss than as a roof joist.
While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below.
Label and identify the parts of a.
Below is a sketch of the original roof wall structural details for this building.
Needed to tie the roof together where the rafters are framed at an angle to each other.
The run or half the building span is the base of the triangle.
Gable a gable roof has a ridge at the center and slopes in two directions.
Wood construction data 1.
Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.
An example of each is shown in figure 2 1.
Common types of roofs and basic framing terms.
A 2 nominal lumber thickness provides the maximum pullout values for both screws and nails when the fasteners penetrate a minimum of 1 into the wood.
The substructure to which the metal panels are fastened must be properly spaced and sufficiently thick to provide a roof or wall system able to meet required design loads.
It is the form most commonly used by the navy.
The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members.
The original roof was built using purlins beams extending between gable ends.
Framing a roof is the last step in framing new construction.
Most roofs utilize 16 inch spacings for strength and rigidity.
The point at which all the raftersare attached to.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
Like wall studs and floor joists rafters and trusses are spaced every 16 or 24 inches from center to center.