Definition of structural ridge or ridge beam used in roof framing a structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself.
Ridge roof framing.
Since half the load is now supported at the ridge the ridge member becomes a ridge beam that is a load carrying element and must be designed to bridge the span between the supports which carry the vertical load to the ground.
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.
Create a saddle at the top with the braces the height of the building walls plus rise less the width of the ridge board.
For 2 x 6 rafters use a 2 x 8 ridge board and so on.
Choose a ridge board that is one size larger than your common rafters.
Ridge beam height above top of slab height of wall z.
For 2 x 4 rafters use a 2 x 6 ridge board.
Framing a roof is the last step in framing new construction.
Toenailing from both faces of the rafter into the beam is one option but makes keeping the rafter lined up difficult.
We will go over raft.
Brace these supports in the centerline of the building.
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Wondering how to build the structure of your roof.
Rip the ridge board to the correct width to meet the rafter widths at the ridge.
A ridge beam is thicker than a ridge board so nailing through it into the rafter end isn t an option.
Gable shed roof with ridge beam framing.
The top end of each rafter is cut at an angle so that it meets flush with one broadside of the ridge board and the ridge is sandwiched between the rafters.
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In traditional house framing also called stick framing a basic roof frame consists of opposing pairs of sloping rafters that meet at their top ends at a ridge board or ridge beam.
Position a ridge board down in the saddles of the supports.
Rafter hangers are another option for attaching rafters to a ridge beam.
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The ridge board s length will be the outside measurement of the building plus the length of the overhang at both ends.