How To Use Framing Square For Roof Pitch

Read the pitch on the side of the rafter square.

How to use framing square for roof pitch.

Place the framing square on a table with the skinny length pointing right. How to build roof rafters using a framing square. The thicker longer section is called the blade. Lay a framing square flat on the board to be used as a rafter near one end.

You are looking at the face of the framing square. 228 204 x 12 13 412. I go over a. The pitch is defined as the vertical distance a roof.

Measure down y height from the long point of the rafter cut and make a mark. With a torpedo level and a speed square you can pretty accurately gauge the pitch of any roof with a gable end photo 1. The horizontal blade should align with the bottom edge of the board at 12 inches and the vertical tongue should align at the roof pitch. More project and tips.

This will the first point of the rafter measurement line. Roof framing rafter layout 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. Layout the plumb cut and level cut for the rafter tail. The trick here is understanding the number on the framing square is the unit rise per foot of run.

Determine the slope or pitch of the roof by referring to your building plans. 13 412 is the unit rise in inches per foot of our example roof run. Then place a torpedo level on the fat base of the rafter square and adjust the square until the level is level. On both the long and short arms of the framing square are marked various framing tables giving rafter lengths roof slopes and the proper angle of cuts for various roofing connections such as a rafter end abutting the ridge board the birds mouth cut at the rafter segment that rests atop a wall plate hip and valley rafter cuts and other information.

Place the pivot point against the shingles. The skinny length is called the tongue. The length of the plumb cut is determined by the width of the fascia board. Framing square basics how to use one.