Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Roof to wall framing detail.
To provide a drip edge allow an overhang of 1 to 2 inches at the eave.
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.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
At the gable edge use a gable or sidewall flashing.
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.
To wall sloped roof no overhang ledger support.
The function of each component is.
This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance.
Framing a roof is the last step in framing new construction.
In a rafter roof all of these components are required to provide a stable roof.
Framing must transfer all gravity uplift and lateral loads to the foundation.
Sills and plates normally provide adequate firestopping in walls and partitions.
Rafters act more like the top chord of a roof truss than as a roof joist.
Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.
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.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
At roof to wall intersections see figure 1.
In buildings including residential structures framing systems typically consist of the roof structure that supports the roof.
The run or half the building span is the base of the triangle.
The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material.
Collar ties rafter ties tension beams structural ridge beams.
The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.
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.
Some of these can support the roof and prevent ridge sagging and wall spreading.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
Exterior wall parapet rafters prep.
Cont 2x2 soffit framing jiit li wallsheathing fascia vented soffit system 1.
Deck exterior and interior load bearing walls beams girders posts and floor framing.