How Do You Find The Square Footage Of A Roof

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.

How do you find the square footage of a roof.

Rise 12 enter the lower pitch length. The calculator cannot account for complex shapes based on a measurement of square footage alone. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. 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. You will need to express this size in terms of square feet. The result is the total square footage of your roof. L h 2 area calculating an area of a triangle when estimating a roof.

Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. Inches enter the pitch of the upper roof rise 12 enter the pitch of the lower roof. The length l times the height h of a triangle is twice its area a2. A square simply refers to a 10 x 10 square of roofing.

Add the square footage for all the planes together. Multiply by the square footage of a single floor of your house. 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. Feet inches enter the width of the building.

Feet inches enter the overhang of the eaves. 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. Enter the length of the building. 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.

1 roof square 100 square feet. 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. Things you will need steel tape measure. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

This is simply 100 square feet of roof. Inches enter the overhang of the gable.