Gambrel Roof With Ridge Beam

Leave ridge beam for shed construction page.

Gambrel roof with ridge beam.

That a conventional barn sized gambrel is a nightmare of purlin beams ridge beams and dovetail. A timber frame truss roof with ridge beams and common rafters can provide a larger space between each truss. Bothwere roof shapes stable underallcustomary dead loads for34 foot bams. Choose a ridge board that is one size larger than your common rafters.

The ridge board s length will be the outside measurement of the building plus the length of the overhang at both ends. Figure 4 givesthe dimensions for the roofs. Area under roof the same gross areawas taken forboth roofs. Peculiarities of gambrel roof constructing to frame a gambrel roof that is to meet all requirements of reliability and durability you should observe following conditions.

The common rafters are often smaller than the truss timbers to differentiate between the primary and secondary timber frame elements. The gross areaof the three raftergpnbrelwas taken. I can t ever recall seeing a saltbox shed built with a ridge beam or even a gambrel roof shed for that matter. Come to think of it the only style shed i can see that would be easy to use a ridge beam is the gable style shed.

We like common rafters between each truss thereby giving a rhythm to the roof structure. Gambrel roof trusses on one side have an oblique cut for attachment to the ridge beam. For 2 x 4 rafters use a 2 x 6 ridge board. The standard gambrel using a combination of14and 12 foot raf tersections.