How Do You Find The Square Footage Of A Roof

So continuing our example if you ve got a two story house with a total square footage of 2 700 square feet with each floor having.

How do you find the square footage of a roof.

1 roof square 100 square feet. For instance if the roof is 1550 square feet then it is 16 squares. You will need to express this size in terms of square feet. If for example the total square footage for the examples used so far would be 14 400 the rectangular plane plus 900 the triangle plus 2 000 the irregular shape 17 300 square feet.

Inches enter the overhang of the gable. A square simply refers to a 10 x 10 square of roofing. The first step in a free roofing estimate is measuring the roof dimensions. 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.

Rise 12 enter the lower pitch length. Feet inches enter the width of the building. Feet inches enter the overhang of the eaves. If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width.

Inches enter the pitch of the upper roof rise 12 enter the pitch of the lower roof. To find the squares divide the overall roof area by 100 and then round up. Multiply by the square footage of a single floor of your house. 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.

Add the square footage for all the planes together. Things you will need steel tape measure. The calculator cannot account for complex shapes based on a measurement of square footage alone. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

The length l times the height h of a triangle is twice its area a2. This is simply 100 square feet of roof. Enter the length of the building. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

The result is the total square footage of your roof. In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.