How To Measure Square Foot Of A Roof

If the house has an irregular shape measure each part separately figure the separate areas and add them together.

How to measure square foot of a roof.

You will need to express this size in terms of square feet. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Each square is 100 square feet. 1 roof square 100 square feet.

If your roof is 5 000 square feet you will have 50 squares. Before you do any roofing work you must calculate the roof s square footage to determine how much material you need. 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. L 30 feet h 12 feet 30 12 2 180 square feet.

The length l times the height h of a triangle is twice its area a2. Step 1 understand your roof surface a home s roof is measured in squares. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. Outside of the u s a degree angle is typically used.

Multiply the length by the width to arrive at the ground area of the house. 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. Shingles and other roofing materials such as underlayment are typically measured in squares that are 10 feet long and 10 feet wide with each square measuring 100 square feet.