How Do You Find The Square Footage Of A Roof

A square simply refers to a 10 x 10 square of roofing.

How do you find the square footage of a roof.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Things you will need steel tape measure. Feet inches enter the overhang of the eaves. Feet inches enter the width of the building.

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. For instance if the roof is 1550 square feet then it is 16 squares. The calculator cannot account for complex shapes based on a measurement of square footage alone. You will need to express this size in terms of square feet.

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. 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. L h 2 area calculating an area of a triangle when estimating a roof. The length l times the height h of a triangle is twice its area a2.

Inches enter the pitch of the upper roof rise 12 enter the pitch of the lower 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. Add the square footage for all the planes together.

Multiply by the square footage of a single floor of your house. This is simply 100 square feet of roof. Rise 12 enter the lower pitch length. To find the squares divide the overall roof area by 100 and then round up.

The first step in a free roofing estimate is measuring the roof dimensions. 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. Inches enter the overhang of the gable. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

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. 1 roof square 100 square feet.