Gable Roof Framing Detail

The gable dormers we built are 6 ft.

Gable roof framing detail. Wide about 9 ft. Framing a gable roof building a gable with barge end purlin struts and collar ties. It is the form most commonly used by. Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang.

And the line length measurement from the roof peak to the building wall is the hypotenuse. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. A gable roof is a simple symmetrical triangular roof. These areas include the high pressure eave and corner zones porch and roof overhangs gable ends and where.

The three primary variables to consider when designing the eaves for a gable roof are the width of the gable trim the projection of the eaves and the details at the corner of the gable ends. 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. One is a failure of the hinge at the connection between the top plate of the wall and the gable end framing if the gable end is not balloon framed with continuous studs. If you re a little unsure of your rough framing or roofing skills hire a carpenter to help with this phase of the roof dormer project.

Roof framing joins bearing walls or beams. The connection of the sheathing to the supporting members. The rise or height of the roof at its peak is the altitude of the triangle. Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.

This is now addressed in the international residential code. Each dormer adds about 30 sq. 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. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

Connection between top plate and gable end framing. Putting it together is relatively straight forward if you have basic carpentry skills and use precise measurements. Common types of roofs and basic framing terms. The run or half the building span is the base of the triangle.

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. Since 2009 section r602 3 has required. An example of each is shown in figure 2 1. Roof failures are often observed on areas of the building where wind pressures are concentrated.