How To Measure Square Feet Of A Roof

Measure the length and width of every roof plane or surface.

How to measure square feet of a roof. How to calculate square feet of a roof step 1. Multiply the length and width of each square or rectangle shaped plane. 8 inches and you have an 8 in 12 pitch. If your roof is 5 000 square feet you will have 50 squares.

Calculate each plane separately. How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. 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. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.

Include dormers the small outjuttings over attic. 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. If the house has an irregular shape measure each part separately figure the separate areas and add them together. 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.

Step 1 understand your roof surface a home s roof is measured in squares. Convert the area to roofing squares. Pitch measurement method 2 2.