Roof Eave Framing

And the line length measurement from the roof peak to the building wall is the hypotenuse.

Roof eave framing.

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. How to box frame roof eaves written by piyush jain on feb 07 2010. An eave is the part of a roof that overhangs the building s exterior walls. 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.

The rise or height of the roof at its peak is the altitude of the triangle. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord. On both ends of the roof i let the subfascia run out beyond the anticipated width of the rakes.

Before roof trusses the exposed rafter tails were an extension of the roof framing. A building with a hip roof has more eaves than a building with a gable roof. The ceiling joists pushed the rafters up and gave extra height to the building. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Open eaves with trusses. 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. Blind valleys simplify framing.