Set Ridge Beam
At 9:52 in
Roof Framing Math Made SIMPLE!
What happens here
After cutting the pattern rafter, the main ridge beam (or ridge rafter, depending on terminology and material used) is installed. To do this, establish a perfectly level line between the two main beams of the roof structure. From this level line, measure up the 'total rise' (the calculated rise plus the height above plate, for example, 3 feet 1 1/16 inches) to determine the exact height for the top of the ridge. Once the height is determined, the ridge beam is lifted into place and temporarily braced. One end can be supported by a 2x brace against the house, while the other end uses a temporary brace that ensures the ridge beam is plumb and centered. This temporary support is critical for stability before the main rafters are installed.
Goal: Install and temporarily brace the ridge beam at the correct height and alignment.
Tools and materials
- Fasteners
- Level
- Material Lift (optional)
- Measuring Tape
- Ridge Beam/Rafter
- Temporary Bracing Lumber
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