And the line length measurement from the roof peak to the building wall is the hypotenuse.
Roof return framing.
Whether you are framing a cornice return capped with a hip roof or a shed roof the first step is to install the subfascia and the ledger.
Run both boards long and cut in place.
The run or half the building span is the base of the triangle.
Return eaves a common roof structure is made of trusses or rafters.
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.
The rise or height of the roof at its peak is the altitude of the triangle.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.