This gable roof has two planes.
Roof square footage of sheds.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.
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.
Roofing cost per square foot.
8 inches and you have an 8 in 12 pitch.
The lower slope length is measured from outside wall to the start of the upper sloped roof section.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
A square simply refers to a 10 x 10 square of roofing.
Simply measure length a x width b.
Calculate the square footage of a gambrel style roof using imperial measurements.
After a flat roof a shed roof is one of the the easiest roofs to calculate square footage of.
Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.
Shed roof square footage calculator.
If this distance measures 4 inches you have a 4 in 12 pitch.
To find the squares divide the overall roof area by 100 and then round up.
Finally calculate your roof s total square footage by simply adding the square footage of each of the planes together.
When calculating roofing costs per square asphalt shingles run from 350 and 500 per square metal or tin roofs costs 600 to 1 200 per square and concrete or clay costs between 1 200 and 1 800 per square.
A x b 120 x 100 12 000 sq.
For the total square footage of the roof.
Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.
Things you will need steel tape measure.
For example this shed roof has one roof plane.
The total amount of roofing material you need is 17 300 1 730 19 030 square feet.
Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area.
If you are replacing your current roof add 125 to 500 per roofing square for old roof removal.
This is simply 100 square feet of roof.
To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet.