A standard triangular roof known as a gable roof is framed using rafters which are diagonal members that support the roofing materials.
Gable roof ridge support.
Putting it together is relatively straight forward if you have basic carpentry skills and use precise measurements.
Pros of gable roofs.
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.
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.
Also known as pitched or peaked roof gable roofs are some of the most popular roofs in the us.
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.
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.
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.
Framing a gable roof building a gable with barge end purlin struts and collar ties.
But a gable roof also requires some form of horizontal.
A gable roof is a simple symmetrical triangular roof.
To build your gable roof you ll need wooden boards cut into joists rafters supports and a ridge board in addition to sheathing felt paper and shingles.
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.
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.
Ridge beams are required by code if the roof slope is less than 3 in 12 irc section r802 3.
Gable roofs will easily shed water and snow provide more space for an attic or vaulted ceilings and allow more ventilation.
Some of these can support the roof and prevent ridge sagging and wall spreading.