How To Measure Square Feet Of A Roof

Pitch measurement method 2 2.

How to measure square feet of a roof.

Each square is 100 square feet. Calculate each plane separately. Multiply the length and width of each square or rectangle shaped plane. Convert the area to roofing squares.

Measure the length and width of every roof plane or surface. How to calculate square feet of a roof step 1. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. Because each 100 square feet of roof is one.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. 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. If the house has an irregular shape measure each part separately figure the separate areas and add them together. If this distance measures 4 inches you have a 4 in 12 pitch.

If your roof is 5 000 square feet you will have 50 squares. 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. 8 inches and you have an 8 in 12 pitch.