Measure Roof Pitch With Square

Then place a torpedo level on the fat base of the speed square.

Measure roof pitch with square.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. 204 x number on framing square 228. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2. Read the pitch on the side of the speed square.

Adjust the square until the level is level. A flat roof s total square footage with no more than a three in 12 pitch can be calculated by simply multiplying the length by the width and rounding to the nearest foot. 228 204 x 12 13 412. Place the pivot point against the shingles.

Presently you measure from the conclusion of the level till the bottom periphery of the rafter. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. Number on framing square 228 204 x 12in. If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2.

13 412 is the unit rise in inches per foot of our example roof run. Because of its compact size it is frequently used as a saw guide when cutting framing members as well as a layout tool for quick 45 and 90 degree cuts. The trick here is understanding the number on the framing square is the unit rise per foot of run. Thus you get the rise of the roof.

Measure a roof pitch method 2 on top of a ladder at a walled area of a pitched roof put the level so that it touches the roof overhang rafter while the 12 inch mark touches the bottom edge of the rafter. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.