Gable Roof Ridge Board

The ridge board runs the length of the building and provides support for the tops of the rafters helping the whole roof structure work together as a system.

Gable roof ridge board.

Find the ceiling joists closest to the middle of your structure. Repeat the process on the other side so the rafters line up with one another. In part 3 of our roof framing series we cover how to select a ridge board how to layout a ridge board how to mark it so you know where to fasten the raft. Ridge boards can only be used in roofs with slopes from 3 in 12 up to 12 in 12.

Leave ridge beam for shed construction page. Set out the wall plates to whatever centers you need for your gable roof 400 450 600 or 900 governed by the weight of roof covering ie tiles and cut fix the joists so they are parallel to each other and flush with the back edge of the wall plates. A ridge board is a non structural member that serves as a prop for opposing rafters to rest against and connect to. Attach your rafter to one side of the ceiling joist using construction nails then hammer nails from the ridge board into the rafter.

After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors. With the columns removed each end of the gable can be opened up. Rafters and ridge boards in conventional gable roof framing the slope of the roof is formed by rafters that run diagonally downward from the peak of the roof to the tops of the exterior walls of. One of the main benefits of using a ridge board system is the elimination of the columns typically required under each end of a ridge beam.

The ridge board must be set as perfectly as possible so take your time and use careful measurements. Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. Ridge boards shall be at least 1 inch nominal thickness and not less in depth than the cut end of the rafter irc section r802 3. Ridge work out how wide you want the barge soffit boards.

The ridge board and rafters are the strength of the roof.