How To Figure Out Sq Feet Of Roof

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

How to figure out sq feet of roof.

This is simply 100 square feet of roof. Multiply the length and width of each square or rectangle shaped plane. Include dormers the small outjuttings over attic. 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.

For instance if the roof is 1550 square feet then it is 16 squares. 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. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. You will need to express this size in terms of square feet.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. To find the squares divide the overall roof area by 100 and then round up. Now that the basic concept has been covered let s take a look at a more complex roofing system.

L 30 feet h 12 feet 30 12 2 180 square feet. 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. However shingles are packaged in a way that they are light enough for the average person to carry around. How to calculate square feet of a roof step 1.

A square simply refers to a 10 x 10 square of roofing. Measure the length and width of every roof plane or surface. With a more complex roof such is this one it is highly recommended that you make a basic sketch. Convert the area to roofing squares.

The first step in a free roofing estimate is measuring the roof dimensions. 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. Calculate each plane separately. If the house has an irregular shape measure each part separately figure the separate areas and add them together.

Because each 100 square feet of roof is one.