For instance if the roof is 1550 square feet then it is 16 squares.
How to measure roof sq ft.
For example if your home is 60 feet long and 40 feet wide you would multiply the length by the width and come up with 2 400 square feet.
Because each 100 square feet of roof is one roofing square divide.
Pitch measurement method 1.
If this distance measures 4 inches you have a 4 in 12 pitch.
Multiply the length by the width to arrive at.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Calculate each plane separately.
Next you will need to use a roofing materials calculator.
Convert the area to roofing squares.
1 roof square 100 square feet.
8 inches and you have an 8 in 12 pitch.
The length l times the height h of a triangle is twice its area a2.
Include dormers the small outjuttings over attic.
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.
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.
Measure the ground dimensions of the house using a tape measure and write down these dimensions.
How to calculate square feet of a roof step 1.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
A square simply refers to a 10 x 10 square of roofing.
The roof surface area would be 24.
This number will provide you the level area beneath the roof.
L h 2 area calculating an area of a triangle when estimating a roof.
To find the squares divide the overall roof area by 100 and then round up.
Check that your footage measurements are within this range so you can start off on the right foot.
How do you calculate square footage for a roof.
Multiply the length and width of each square or rectangle shaped plane.
Outside of the u s a degree angle is typically used.
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.
To convert the square footage to roof squares divide the square footage by 100.