How To Measure Roof Sq Ft

Include dormers the small outjuttings over attic.

How to measure roof sq ft.

Convert the area to roofing squares. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Multiply the length by the width to arrive at. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2.

Because each 100 square feet of roof is one roofing square divide. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Outside of the u s a degree angle is typically used. Multiply the length and width of each square or rectangle shaped plane.

The length l times the height h of a triangle is twice its area a2. Check that your footage measurements are within this range so you can start off on the right foot. How to calculate square feet of a roof step 1. 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.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. Next you will need to use a roofing materials calculator. How do you calculate square footage for a roof. 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.

This is simply 100 square feet of roof. 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. Measure the ground dimensions of the house using a tape measure and write down these dimensions. The roof surface area would be 24.

8 inches and you have an 8 in 12 pitch. Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate. Measure the length and width of every roof plane or surface. To convert the square footage to roof squares divide the square footage by 100.

This number will provide you the level area beneath the roof. To find the squares divide the overall roof area by 100 and then round up. A square simply refers to a 10 x 10 square of roofing. 1 roof square 100 square feet.

Pitch measurement method 1. L h 2 area calculating an area of a triangle when estimating a roof.