Roof Framing Elevation

Roof terminology is also not rigidly defined.

Roof framing elevation.

See attached schedule for maximum spans. Bms 32 o c. The advantages of hip roofs apply to this framing style. An unparalleled three layers of protection surround a carbon steel core ensuring each critical joist beam and ledger connection holds up to the elements for decades with a 25 year limited residential warranty to prove it.

Interior grade steel framing triple coated for superior durability. 2 x 8 hip figure 20 4 a roof framing plan is used to show the framing members for the roof. Figure 10 40 and reduce that to 1 4. 2 x 6 24 o c.

The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering. 2 x 6 o c. Discover the 36 different types of roofs for a house. Line length is the hyptenuse of the triangle whose base equals the total run and whose altitude equals the total rise.

That makes the roof s span 40 feet. Roof shapes differ greatly from region to region. If you have not yet built framing select build framing build framing from the menu and generate the types of framing that you wish to show. 16 the bow roof.

Two of the styles after this are actually the inverse of this concept. Select 3d create orthographic view backclipped cross section from the menu then click and drag a camera arrow to create a cross section elevation view. Usages vary slightly from region to region or from one builder or architect to another. Bow roofs appear gable like but the slopes are curved.

For example if the slope is 4 in 12 and the run is 12 feet the ridge beam height m will be 4 feet. 2 x 6 24 o c. Frame over main roof w 2 x 6 raft o c. Say your house is 38 feet wide and the gable roof has a 1 foot overhang on each side.

1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Figure 2 2 roof framing terms. Without the ridge it would be a barrel roof not on our list and the ridge is clearly what gives it the bow design. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.

This gallery includes terrific roof design illustrations so you can easily see the differences between types of roofs. Includes a frame bonnet gable hip mansard butterfly valley combination shed and more. The slopes are steep. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Determining the ridge beam height. If you know the slope x in 12 you want to use for your roof framing design you can use it along with the run r to determine the height of the ridge beam. All rafters to be 2 x 6 unless noted.