How To Measure Roof For Square Footage

Find the length and width of the building s exterior walls.

How to measure roof for square footage.

You will need to express this size in terms of square feet. Convert the area to roofing squares. For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 feet. How to measure roof square.

The pitch is the steepness of the roof. Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements. Calculate the pitch of the roof. Thus in a simple style house you ll only have to click on the corners.

Step 1 understand your roof surface. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. 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 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.

Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. Because each 100 square feet of roof is one roofing square divide. The calculator cannot account for complex shapes based on a measurement of square footage alone. If your roof is 5 000 square feet.

Step 3 consider the roof slope. How do you calculate square footage for a roof. To find the pitch of your roof you ll first. Step 4 take ground measurements.

Multiply the length by the width to arrive at. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. Stretch your tape measure along the walls from end to end. The first step in a free roofing estimate is measuring the roof dimensions.

Each square is 100 square feet. Use a pitch. Measure the ground dimensions of the house using a tape measure and write down these dimensions. Step 2 section the roof.