How Do U Figure Square Feet Of A Roof

To accurately calculate the area of your roof you must first determine its slope or pitch.

How do u figure square feet of a roof.

If you measured in feet inches divide inches by 12 and add that to your feet measure to get total feet. Multiply the length by the width to arrive at. 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. To find the squares divide the overall roof area by 100 and then round up.

Measure the length and width of every roof plane or surface. So if you divide your answer of a product of length times height by two you will get the area of a triangle. The first step in a free roofing estimate is measuring the roof dimensions. You will need to express this size in terms of square feet.

1 roof square 100 square feet. If you measured in feet skip to calculate the area as square footage. This is simply 100 square feet of roof. Measure the ground dimensions of the house using a tape measure and write down these dimensions.

A square simply refers to a 10 x 10 square of roofing. Include dormers the small outjuttings over attic windows. Divide by 12 and that is your measurement in feet. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.

For instance if the roof is 1550 square feet then it is 16 squares. How to calculate square feet of a roof. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size. The top ridge will be shorter than the one of the gable roof but the four hips will add to the ridge length.

Because each 100 square feet of roof is one roofing square divide. Given pitch and a horizontal area measurement multiply the horizontal area by a correction factor corresponding to pitch provided in the table below to determine the actual area of the roof to be used in the roofing material calculator. 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. L h 2 area calculating an area of a triangle when estimating a roof.

Multiply the length and width of each square or rectangle shaped plane. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Calculate each plane separately. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

Depending whether the roof area is measured horizontally possibly from a drawing or photograph a correction factor is necessary to determine the actual area of the roof. Convert the area to roofing squares. The only difference in this calculation to the one for a gable roof area is the amount of the ridge.