Collar ties rafter ties tension beams structural ridge beams.
Roof to wall framing detail.
Exterior wall parapet rafters prep.
The run or half the building span is the base of the triangle.
Framing a roof is the last step in framing new construction.
Deck exterior and interior load bearing walls beams girders posts and floor framing.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
In buildings including residential structures framing systems typically consist of the roof structure that supports the roof.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.
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.
The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material.
Most simply use a nominal 6 piece of lumber.
Other firestopping requires 2 inch lumber or two thicknesses of 1 inch lumber with staggered joints or one thickness of inch plywood with joints backed by 1 inch lumber or inch plywood.
Needed to tie the roof together where the rafters are framed at an angle to each other.
This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance.
In a rafter roof all of these components are required to provide a stable roof.
Do not seal housewrap or building paper to step flashing.
Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.
The function of each component is.
The rise or height of the roof at its peak is the altitude of the triangle.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.
Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1.
Some of these can support the roof and prevent ridge sagging and wall spreading.
At the gable edge use a gable or sidewall flashing.
To provide a drip edge allow an overhang of 1 to 2 inches at the eave.
Framing must transfer all gravity uplift and lateral loads to the foundation.
To wall sloped roof no overhang ledger support.
Rafters act more like the top chord of a roof truss than as a roof joist.
