Roof Beam Framing Plan

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.

Roof beam framing plan.

One of the most important parts of building a sturdy roof is the initial roof framing plan. Ridge board ridge beam. If your span table shows the roof beam cannot support the roof rafters for the whole length of your house you will want to choose a built up roof beam whose maximum spans are the same as or slightly longer than your chosen floor beam spans. This will the first point of the rafter measurement line.

Parts of a roof. The loads on the ridge beam are carried by vertical posts at the beam ends down through the building structural walls to the building foundation. Measure down y height from the long point of the rafter cut and make a mark. In this way you can continue your floor beam structural posts all the way from the basement up to the roof beam.

Most home builders attempting to frame a roof themselves will contract out the actual construction of the rafters by supplying the measurements necessary and having them delivered or by supplying the architectural design plan and getting the trusses appropriate. The point at which all the raftersare attached to. Ridge beam sits below the rafters. Roof framing simply describes how a group of rafters and beams are fitted or joined together in order to provide support for the roof covering.

Ridge board v s beam. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it. Transfers the loadof the roof through the raftersto walls below. A ridge board is a horizontal member of the roof frame.

Roof framing rafter layout. Supported by lally columns.