How To Figure Roof Squares

How do you calculate square footage for a roof.

How to figure roof squares.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. Roofing pitch for square roof area finally the more complex part measuring your roof s pitch. The length l times the height h of a triangle is twice its area a2. 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.

A square simply refers to a 10 x 10 square of roofing. Measure the ground dimensions of the house using a tape measure and write down these dimensions. Roof pitches in degrees. This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.

This is simply 100 square feet of roof. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Measure your house at ground level then add in the roof s overhang for greater accuracy. Multiply the length by the width to arrive at.

Feet then you will have 20 squares. It is often compared to slope but is not exactly the same. If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof. Find the square footage of the roof.

Convert the area to roofing squares. 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. 1 roof square 100 square feet. If your roof is 2 000 sq.

For instance if the roof is 1550 square feet then it is 16 squares. Measure the length and width of each portion of the roof multiply length by width for each plane and then add the planes together for the total square footage. L h 2 area calculating an area of a triangle when estimating a roof. Estimate or calculate the pitch of your roof low medium or high.

To find the squares divide the overall roof area by 100 and then round up. For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 feet. 2 000 100 20. You will need to express this size in terms of square feet.

The first step in a free roofing estimate is measuring the roof dimensions.