How To Figure Roof Squares

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

How to figure roof squares.

This is simply 100 square feet of roof. 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. 1 roof square 100 square feet. How do you calculate square footage for a roof.

Roof pitches in degrees. This nominal square footage amount is then multiplied by a factor associated with the roof s pitch. To find the squares divide the overall roof area by 100 and then round up. If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.

Roofing pitch for square roof area finally the more complex part measuring your roof s pitch. Feet then you will have 20 squares. Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. Convert the area to roofing squares.

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. The first step in a free roofing estimate is measuring the roof dimensions. 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. Find the square footage of the roof.

Measure the ground dimensions of the house using a tape measure and write down these dimensions. You will need to express this size in terms of square feet. Because each 100 square feet of roof is one roofing square divide. If your roof is 2 000 sq.

2 000 100 20. The length l times the height h of a triangle is twice its area a2. So if you divide your answer of a product of length times height by two you will get the area of a triangle. Multiply the length by the width to arrive at.

Estimate or calculate the pitch of your roof low medium or high. For instance if the roof is 1550 square feet then it is 16 squares. A square simply refers to a 10 x 10 square of roofing. Measure your house at ground level then add in the roof s overhang for greater accuracy.

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.