Roof Eave Framing

The run or half the building span is the base of the triangle.

Roof eave framing.

On both ends of the roof i let the subfascia run out beyond the anticipated width of the rakes. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. Doing so raises the eave which. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. The rise or height of the roof at its peak is the altitude of the triangle. To ensure our content is always up to date with current information best practices and professional advice articles are routinely reviewed by industry experts with years of hands on experience. Finish the eaves framing after ripping the top of the subfascia with a circular saw set to 26 5 degrees i flushed the top ripped edge with the top of the plumb cut on the rafters and screwed the subfascia to the rafter tails.

Blind valleys simplify framing. And the line length measurement from the roof peak to the building wall is the hypotenuse. When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord. What hip roofs demand in extra framing.

Before roof trusses the exposed rafter tails were an extension of the roof framing. Open eaves with trusses. How to box frame roof eaves written by piyush jain on feb 07 2010.