Ridge Roof Framing
Rafter to ridge beam connection framing roof ceiling construction structural ridge beam absolute deflection in a ridge beam structural ridge beam tricks of the trade.
Ridge roof 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. Glulam ridge beam span table elcho beams tables golagoon. Once the ridge beam has been positioned in place and supported by roof framing members you can determine the placement of a rafter by measuring down from the top of the beam y height and making a mark on the beam. 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.
This video covers one of the most exciting parts of roof framing installing rafters. Toenailing from both faces of the rafter into the beam is one option but makes keeping the rafter lined up difficult. A ridge beam is thicker than a ridge board so nailing through it into the rafter end isn t an option. Framing a roof is the last step in framing new construction.
Gable shed roof with ridge beam framing. Choose a ridge board that is one size larger than your common rafters. 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. Timber steel framing manual single span ridge beam.
For 2 x 4 rafters use a 2 x 6 ridge board. Rafter hangers are another option for attaching rafters to a ridge beam. For 2 x 6 rafters use a 2 x 8 ridge board and so on. Create a saddle at the top with the braces the height of the building walls plus rise less the width of the ridge board.
Rip the ridge board to the correct width to meet the rafter widths at the ridge. 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. Brace these supports in the centerline of the building. Wondering how to build the structure of your roof.
We will go over raft. The ridge board s length will be the outside measurement of the building plus the length of the overhang at both ends. Position a ridge board down in the saddles of the supports.