Plumb Cut Roof

Roof angle overhang level rafter depth rafter thick birds mouth plumb birds mouth seat.

Plumb cut roof.

On the properties palette for rafter cut select plumb cut two cut plumb or two cut square. The traditional method has been rise inches 12 run inches. So if your roof is a 45 degree angle that is for every 12 along the horizontal run it rises 12 it s a 12 12 pitch. The number of rafters needed will be determined by the length of your roof.

In the drawing area select the roof. Roof pitch is measured in a rise to run ratio with the vertical rise always shown first. Select a roof pitch. How to plumb cut rafter tails.

Determine a thickness for the ridge and use the drop down to select it. This is a mitered plumb cut 4 in 12 on this roof if you re working with finished trim. Back in the 70 s when i first entered the prefabricated metal connector plated wood truss industry i was a sawyer. After creating a roof change the style of the eaves by specifying the rafter cut.

Birdsmouth which consists of two cuts a horizontal seat cut and a vertical shoulder cut. If it rises onlyread more. The length of the rafter is given from the long point of the ridge cut at the top down along the top edge the board to the same plumb cut on the rafter s notch. For two cut plumb and two cut square specify a value for fascia depth between zero and the thickness of the roof.

Locate these rafter terms in the illustration below. Plumb cut typically called the ridge cut at the top end of the rafter. Sawyers are the folks who operate the component saws which precision hopefully cut all of the components prior to assembly. Some architectural designs call for plumb or vertical cuts as opposed.

Make the bottom plumb cut on the ground. Wall thick wall height allow for ridge thickness when determining rafter run to outer wall. Plumb cut definition is a cut in a vertical plane. Depending on the size of your structure you will need to cut several or many more.

The top cut face of a rafter that is designed to butt vertically against a ridgeboard. Square cut or plumb cut. Tail cut which may be cut plumb or square depending on how the eaves are detailed. When framing a gable or hip roof the final step is cutting the rafter tails for fascia board.

At this point you ve cut 1 roof rafter. Print full scale rafter plumb cut templates and birdsmouth templates.