How Do You Measure A Roof Square

Outside of the u s a degree angle is typically used.

How do you measure a roof square.

Mark a length of 1 foot 0 30 m on a long level starting from one end. Pitch measurement method 2 2. First measure the length and width of each surface on the roof then multiply these values to. Be sure to find the area of any dormers on your roof as well.

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. 1 roof square 100 square feet. Add all your measurements together to get your total square footage. Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. How to measure a roof. How to determine your roof pitch. How do you calculate square footage for a 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. Use a tape measure to note the length and width of your roof including dormers. For your safety use a sturdy reliable ladder and secure to your roof. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

Be careful walking around so you don t damage your roof. If this distance measures 4 inches you have a 4 in 12 pitch. Convert the area to roofing squares. Measure all your hips valleys ridges eaves and rakes.

8 inches and you have an 8 in 12 pitch. Multiply the length by the width to arrive at. Because each 100 square feet of roof is one roofing square divide. 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. How to measure a roof in the sample below you will have 5 different calculations and that should match the number of sections you wrote down when you started. 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. If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2.

Multiply the length by the width to find the area of rectangular sections. Measure the ground dimensions of the house using a tape measure and write down these dimensions. Measure the pitch of your roof in the attic. Wear shoes boots with proper traction to avoid slipping.

From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter. How to calculate your roof square footage. The length l times the height h of a triangle is twice its area a2.