Gable Roof Ridge Support

Pros of gable roofs.

Gable roof ridge support.

A standard triangular roof known as a gable roof is framed using rafters which are diagonal members that support the roofing materials. But a gable roof also requires some form of horizontal. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. That rafter outside forms the overhang for the barge boards to fix to and so the soffit boards and ventilation are continuous all the way.

A gabled roof is a roof with two sloping sides that come together at a ridge creating end walls with a triangular extension called a gable at the top. Collar ties rafter ties tension beams structural ridge beams. The typical gable roof diagram above shows the r length measured from the outside wall to the middle of the ridge beam the rafter section diagram below typical of a shed or patio cover roof shows the r length measured from the outside wall to the outside face of the ridge beam either one is acceptable depending on which type of roof you are building but if you are using the. Also known as pitched or peaked roof gable roofs are some of the most popular roofs in the us.

The ridge board must be set as perfectly as possible so take your time and use careful measurements. 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. Some of these can support the roof and prevent ridge sagging and wall spreading. Framing a gable roof building a gable with barge end purlin struts and collar ties.

Putting it together is relatively straight forward if you have basic carpentry skills and use precise measurements. Gable roofs will easily shed water and snow provide more space for an attic or vaulted ceilings and allow more ventilation. Ridge beams are required by code if the roof slope is less than 3 in 12 irc section r802 3. The picture above shows the plan view of a gable roof ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building.

A ridge beam occupies the same position as a ridge board but it is fabricated from heavier lumber and unlike a ridge board it is supported at the gable ends by structural columns.