If you are replacing your entire roof you will need to purchase shingles in 50 squares to sufficiently cover your 5 000 square foot roof.
How to measure roof square feet.
Measure the length and width of every roof plane or surface.
Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate.
8 inches and you have an 8 in 12 pitch.
Each square is 100 square feet.
How to calculate square feet of a roof step 1.
Multiply the length and width of each square or rectangle shaped plane.
Include dormers the small outjuttings over attic.
Calculate each plane separately.
Next you will need to use a roofing materials calculator.
How do you calculate square footage for a roof.
Because each 100 square feet of roof is one roofing square divide.
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.
Convert the area to roofing squares.
Check that your footage measurements are within this range so you can start off on the right foot.
If this distance measures 4 inches you have a 4 in 12 pitch.
Multiply the length by the width to arrive at.
If your roof is 5 000 square feet you will have 50 squares.