Detail Skillion Roof Framing Plan

The skillion and shed style roofs are framed with a single slope 2 4 or 2 6 or thicker rafters spanning from the low wall to the high wall.

Detail skillion roof framing plan.

Skillion roofs are generally built upon rafters but cost considerably less than roofs that feature multiple slopes. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Skillion roof rafter detail diagram with all dimensions and birds mouths scale. Skillion lean to roof framing calculator.

This design is a particularly effective way to trap water which is a big advantage for houses where collecting rainwater is a priority. A fair estimate for a skillion roof is anywhere from 6000 to 12 000 depending on various factors like the pitch and the materials used to build the roof. Mark out angle birds mouth. And the line length measurement from the roof peak to the building wall is the hypotenuse.

The run or half the building span is the base of the triangle. Skillion roof framing calculator plan diagram with full dimensions. If you plan to have eaves to protect the shed walls make sure you add the extra length when measuring the rafters. The rise or height of the roof at its peak is the altitude of the triangle.

Skillion shed style roof framing. A butterfly roof has two skillions which angle down towards the centre. Skillion roof rafter detail diagram with all dimensions and birds mouths scale. Skillion roof framing calculator plan diagram with full dimensions.