Steep Roof Framing Details

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Steep roof framing details.

In the u s it is defined by the rise in inches to a 12 run. For the shed roof pictured above the back has a 5 12 pitch. Cad details are available in dwg dwf dxf and pdf format. 3 inch rise per 12 run is a 3 12 pitch roof.

Your shed roof framing is not as complicated as you might think. The run or half the building span is the base of the triangle. When you see this detail below it is referring to the pitch of the roof. 4 12 through 9 12 are the most common pitches.

Vertical rise over horizontal run. Unless of course you have a very steep pitch on your trusses or rafters. Steep slope roofing products are generally more visually appealing because they are critical aesthetic components for residential construction where the roof can consist of 40 of the exterior visual appearance of a home. Then you will have more storage.

When you locate the detail you want just click one of the four file format buttons to download it to your computer. The rise or height of the roof at its peak is the altitude of the triangle. After a taking some measurements and doing a bit of ciphering we established that the steepest pitch we could use on the porch roof was 4 in 12. We wanted to make the porch roof as steep as possible while keeping the peak of the roof below the wall to roof intersection at the top of the shed roof.

The style is affected too because the framing of the roof changes the slope. Some of these can support the roof and prevent ridge sagging and wall spreading. To view a cad detail you will need a cad design program or a cad viewer program. Collar ties rafter ties tension beams structural ridge beams.