Formula For Square Footage Of Roof

The calculator cannot account for complex shapes based on a measurement of square footage alone.

Formula for square footage of roof.

1 300 x 1 05 1 365 square feet calculating the area true if you want to get the exact area measurement for your roof you can follow these steps. Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3. Multiply the length and width of each square or rectangle shaped plane. 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.

Measure the length and width of every roof plane or surface. Include dormers the small outjuttings over attic windows. So if you divide your answer of a product of length times height by two you will get the area of a triangle. Once you have your roof s pitch divide the number by 12.

How to calculate square feet of a roof. So keeping with our roof pitch of 4 this gives us 1 9. Multiply this number by your most recent result to get the estimated square footage of your roof. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

L h 2 area calculating an area of a triangle when estimating a roof. Add 1 then take the square root. 1 roof square 100 square feet. Square the result of step 1.

The top ridge will be shorter than the one of the gable roof but the four hips will add to the ridge length. Multiply the number of roofing squares for a low pitch roof by 1 06 to 1 08 to get the square roof area. Calculate each plane separately. The length l times the height h of a triangle is twice its area a2.

Adding 1 gives us 1 1 9 10 9 then taking the square root gives us about.