How To Measure Roof Area

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

How to measure roof area.

Use a pitch. Therefore mark off 12 inches on the level and place it down horizontally against the roof rafter. So if you divide your answer of a product of length times height by two you will get the area of a triangle. The length l times the height h of a triangle is twice its area a2.

To calculate the area of your roof first you ll need to calculate the pitch of it. Pitch measurement method 1. Measuring your roof from the ground 1. To find the pitch of your roof you ll first.

Stretch your tape measure along the walls from end to end. The roof s pitch is the number of inches the roof rises in 12 inches. Find the length and width of the building s exterior walls. 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.

Next place your ladder against your house at the gable end. Calculate the pitch of the roof. 1 roof square 100 square feet. The pitch is the steepness of the roof.

L 30 feet h 12 feet 30 12 2 180 square feet. 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. First use your measuring tape to measure 12 inches on your large level and make a mark at the 12 inch line. The incline or pitch of a roof can be easily measured with a level tape measure and a pencil.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.