How Do You Determine Square Footage Of A Roof

The distance from the top of a stud wall to the peak of the roof.

How do you determine square footage of a roof.

How to calculate square feet of a roof. 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. Multiply the length by the width to arrive at. Roof pitch is measured by rise run.

Calculate each plane separately. The run always remains constant at 12 inches. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. Measure the length and width of every roof plane or surface.

Because each 100 square feet of roof is one roofing square divide. Measure the ground dimensions of the house using a tape measure and write down these dimensions. L x w a in square feet to find square feet multiply the length measurement in feet by the width measurement in feet. The lower slope length is measured from outside wall to the start of the upper sloped roof section.

This would yield 1 3 next square your result. Convert the area to roofing 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. The result is 240 and this means you would need 240 squares of shingles to cover that roof.

Multiply the length and width of each square or rectangle shaped plane. Apply the square footage formula the next step in how to calculate square footage is to plug your measurements into the square footage formula. Calculate the square footage of a gambrel style roof using imperial measurements. How do you calculate square footage for a roof.

The distance from the outside edge of a perimeter stud wall to the center of the house. Include dormers the small outjuttings over attic windows. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

A square is an area of roof which measures 100 square feet.