How To Frame A Roof Rake

Roof framing rafter layout.

How to frame a roof rake.

From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it. And the line length measurement from the roof peak to the building wall is the hypotenuse. Connect the front of the rake flashing to the roof frame s side with wood screws using a screwdriver. Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.

There are a couple of methods for rake wall framing i ve used over the years. One is to position rafters at the rake wall and frame infill studs beneath. The rise or height of the roof at its peak is the altitude of the triangle. I usually cantilever lookouts over the rake wall tying them into the rafters one or two layouts back.

The flashing should overlap the edge of the roof by one inch to help direct water. Measure down y height from the long point of the rafter cut and make a mark. Depends on how you treat the rake wall at the roof line. After the end points of the plates are located the length is found using a base 1 triangle for a 6 in 12 pitch where the hypotenuse is 1 118 times the length of the base.

It helps direct water away from the meeting points and keeps the roofing dry. Flashing is metal trim that fits over joints where two sections of roof meet. It s effective but leaves a hinge line where the wall plate meets the underside of the rafter. The run or half the building span is the base of the triangle.

Plus you end up needing a couple of rafters. The front and back rake flashing and side metal flashing installed with the panels will. This will the first point of the rafter measurement line.