Roof Eave Framing

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

Roof eave framing.

When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord. Open eaves with trusses. Doing so raises the eave which. A building with a hip roof has more eaves than a building with a gable roof.

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. An eave is the part of a roof that overhangs the building s exterior walls. 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 ceiling joists pushed the rafters up and gave extra height to the building. What hip roofs demand in extra framing. The run or half the building span is the base of the triangle. The rise or height of the roof at its peak is the altitude of the triangle.

How to box frame roof eaves written by piyush jain on feb 07 2010. And the line length measurement from the roof peak to the building wall is the hypotenuse. Before roof trusses the exposed rafter tails were an extension of the roof framing.