Square yards to square meters multiply yd 2 by 0 836127 to get m 2.
How to measure sq ft of a roof.
A square simply refers to a 10 x 10 square of roofing.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
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 calculator cannot account for complex shapes based on a measurement of square footage alone.
The answer is the number of roofing squares for the roof.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Square feet to square yards multiply ft 2 by 0 11111 to get yd 2.
How to estimate roofing materials.
This is simply 100 square feet of roof.
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.
Square yards to square feet multiply yd 2 by 9 to get ft 2.
For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 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.
Estimate the pitch of the roof.
Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
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.