How To Figure Square Footage Of A Roof

Outside of the u s a degree angle is typically used.

How to figure square footage of a roof.

For the total square footage of the roof. Include dormers the small outjuttings over attic windows. Plane 1 plane 2 24 000 sq. The first step in a free roofing estimate is measuring the roof dimensions.

This nominal square footage amount is then multiplied by a factor associated with the roof s pitch. If the house has an irregular shape measure each part separately figure the separate areas and add them together. How to calculate square feet of a 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.

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. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Convert the area to roofing squares. 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.

Using this tool will be very helpful for you in finding out the acreage or the tract of land of your property. Roof pitches in degrees. Calculate each plane separately. Multiply the length by the width to find the area of rectangular sections.

Be sure to find the area of any dormers on your roof as well. Roof surfaces are measured in squares a square is an area of roof which measures 100 square feet. Because each 100 square feet of roof is one. Measure your house at ground level then add in the roof s overhang for greater accuracy.

You can even embed this tool on a website that you own. If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2. Multiply the length and width of each square or rectangle shaped plane. It will also give you the square footage of your roof and any other areas that you re wanting to estimate.

It will also give you the perimeter of the shape of the roof.