How To Figure A Roof Square Foot

Dividing by 12 gives the ratio of inches in rise per distance.

How to figure a roof square foot.

Gambrel roof square footage calculator calculate the square footage of a gambrel style roof using imperial measurements. You will need to express this size in terms of square feet. 8 inches and you have an 8 in 12 pitch. To find the squares divide the overall roof area by 100 and then round up.

Because each 100 square feet of roof is one. If this distance measures 4 inches you have a 4 in 12 pitch. Pitch measurement method 1. Dividing the total area of your roof by 100 will therefore help you figure out how many squares worth of shingles to order.

Roofing materials are typically packaged in squares each of which is the equivalent of 100 square feet 9 3 m 2 of roof space. A square simply refers to a 10 x 10 square of roofing. This is simply 100 square feet of roof. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

For a 12 000 sq ft 1 100 m 2 roof you ll need a minimum of 120 squares. Divide your roof pitch by 12. Roof pitch is given as the number of inches in height change over the distance of one foot. Outside of the u s a degree angle is typically used.

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. The lower slope length is measured from outside wall to the start of the upper sloped roof section. Convert the area to roofing squares. 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 if the roof is 1550 square feet then it is 16 squares. The first step in a free roofing estimate is measuring the roof dimensions. 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.