How Do You Measure Square Feet Of A Roof

To find square feet multiply the length measurement in feet by the width measurement in feet.

How do you measure square feet of a roof.

Just snap a few photos of the exterior of the house with the hover app and our patented technology will take it from there. Measure and mark the square footage of each triangular section carefully as these tend to differ in size. The length l times the height h of a triangle is twice its area a2. Measure your house at ground level then add in the roof s overhang for greater accuracy.

If your roof is 5 000 square feet you will have 50 squares. A home s roof is measured in squares. Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area. Things you will need steel tape measure.

This yields a product called the area which is expressed in square feet or square inches if you are calculating a much smaller space such as a dollhouse. Make a sketch of your roof before you go out to measure it. If you have a roof section that s 30 feet 9 1 m long and 12 feet 3 7 m high multiplying those dimensions would give you an area of 180 square feet 17 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.

This nominal square footage amount is then multiplied by a factor associated with the roof s pitch. As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house. Once you work through the basic triangle we will review a typical roof and how to apply some simple math to calculate how much material you will need for a roof used in our hypothetical example. Roof pitches in.

Before you do any roofing work you must calculate the roof s square footage to determine how much material you need. Each square is 100 square feet. 1 roof square 100 square feet. For example if you are buying carpet for a room that is 12 feet long and 10 feet wide.