How Do You Measure A Roof Square

Add all your measurements together to get your total square footage.

How do you measure a roof square.

Measure the pitch of your roof in the attic. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. 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. Wear shoes boots with proper traction to avoid slipping.

First measure the length and width of each surface on the roof then multiply these values to. 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. How to measure a roof. Outside of the u s a degree angle is typically used.

Use a tape measure to note the length and width of your roof including dormers. 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. Steps to measuring roof square footage. Because each 100 square feet of roof is one roofing square divide.

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. If this distance measures 4 inches you have a 4 in 12 pitch. Multiply the length by the width to find the area of rectangular sections. The roof surface area would be 24.

For your safety use a sturdy reliable ladder and secure to your roof. Measure the ground dimensions of the house using a tape measure and write down these dimensions. To convert the square footage to roof squares divide the square footage by 100. Convert the area to roofing squares.

This number will provide you the level area beneath the roof. From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter. L 30 feet h 12 feet 30 12 2 180 square feet. Mark a length of 1 foot 0 30 m on a long level starting from one end.

How do you calculate square footage for a roof. Be careful walking around so you don t damage your roof. Multiply the length by the width to arrive at. How to determine your roof pitch.

Be sure to find the area of any dormers on your roof as well. Pitch measurement method 2 2. Measure all your hips valleys ridges eaves and rakes. The length l times the height h of a triangle is twice its area a2.

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. How to calculate your roof square footage. So if you divide your answer of a product of length times height by two you will get the area of a triangle.