How To Figure Out Square Of Roof

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.

How to figure out square of roof.

Outside of the u s a degree angle is typically used. 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. This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.

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. If the house has an irregular shape measure each part separately figure the separate areas and add them together. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. This is simply 100 square feet of roof.

Multiply the length and width of each square or rectangle shaped plane. Calculate each plane separately. How to calculate square feet of a roof step 1. Roof pitches in degrees.

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. Multiply the length by the width to arrive at the ground area of the house. You will need to express this size in terms of square feet. The first step in a free roofing estimate is measuring the roof dimensions.

Include dormers the small outjuttings over attic.