Roof Ridge Beam Construction

Ridge beam sizing is based on the span of the beam between supports and the amount of roof load supported by the beam.

Roof ridge beam construction.

I always always build trusses. Ridge beams are required by code if the roof slope is less than 3 in 12 irc section r802 3. The ridge board and rafters are the strength of the roof. The difference between them is that a ridge beam is a structural member that bears half of the live and dead loads of the rafters on either side of it but a ridge board is not structural.

Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. The ridge board must be set as perfectly as possible so take your time and use careful measurements. 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. 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.

One at the envelope of the structure on top of a framed wall or a header the other at the peak of the structure on top of the ridge beam. Timber steel framing manual single span ridge beam. The ridge beam could also be flush with the joists the ridge beam is typically a larger member like a 4 x 12 and carries the gravity load of the roof joists just as the bearing wall or header does at the envelope. Framing in a ridge beam in shed roof construction is not hard.

A timber frame roof has rafters and a ridge beam as with stick framing but the ridge is a large structural beam that the rafters sit on top of or sometimes fit into notches cut into the beam. Glulam ridge beam span table elcho beams tables golagoon. The inherent strength and integrity of the triangular form makes the roof a sound structure. Collar tie also collar beam in profile the framing of a conventional pitched roof forms a triangle.

Here s a picture of a gable style shed using a ridge beam. A ridge beam is a structural member used to support the ends of the rafters at the ridge transferring it s loads to posts or gable end walls. With this design the ridge beam bears much more load weight than the ridge board on a standard stick framed roof. Now if you have done any looking around this site you ll quickly see that i am not a fan of using a ridge beam in shed construction.

Yes either a ridge board or a ridge beam is necessary and required by the building code where roof rafters meet at the the center of their span. The ridge board is installed to provide a bearing point where the rafters meet and it also helps with alignment along the ridge. 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.