How Do You Measure Square Footage Of A Roof

Use the instructions for obtaining roof slope to add to your ground measurements.

How do you measure square footage of a roof.

The roof surface area would be 24. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. To find the squares divide the overall roof area by 100 and then round up. In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.

Because each 100 square feet of roof is one roofing square divide. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2. 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. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

How do you calculate square footage for a roof. This is simply 100 square feet of roof. How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. For instance if the roof is 1550 square feet then it is 16 squares.

Measure the ground dimensions of the house using a tape measure and write down these dimensions. The calculator cannot account for complex shapes based on a measurement of square footage alone. If you use ground measurements to determine your roof squares you will need to also compensate roof overhang and slopes to get an accurate count. 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.

A square simply refers to a 10 x 10 square of roofing. If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2. The result is the total square footage of your roof. Add the square footage for all the planes together.

If for example the total square footage for the examples used so far would be 14 400 the rectangular plane plus 900 the triangle plus 2 000 the irregular shape 17 300 square feet. Multiply the length by the width to arrive at. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.