How To Figure Roof Squares

For instance if the roof is 1550 square feet then it is 16 squares.

How to figure roof 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. How do you calculate square footage for a roof. 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. Estimate or calculate the pitch of your roof low medium or high.

If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof. You will need to express this size in terms of square feet. 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. 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.

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

The first step in a free roofing estimate is measuring the roof dimensions. Convert the area to roofing squares. Because each 100 square feet of roof is one roofing square divide. Feet then you will have 20 squares.

It is often compared to slope but is not exactly the same. Measure your house at ground level then add in the roof s overhang for greater accuracy. A square simply refers to a 10 x 10 square of roofing. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

Multiply the length by the width to arrive at. Roof pitches in degrees. Measure the ground dimensions of the house using a tape measure and write down these dimensions. L h 2 area calculating an area of a triangle when estimating a roof.

Find the square footage of the roof. If your roof is 2 000 sq. To find the squares divide the overall roof area by 100 and then round up. 1 roof square 100 square feet.

The length l times the height h of a triangle is twice its area a2.