How Do You Measure A Roof Of A Building

Roughly draw out your roof on a piece of paper.

How do you measure a roof of a building.

To measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. If this distance measures 4 inches you have a 4 in 12 pitch. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.

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. 3 multiply the amount of overhang by two to include the opposite side of the building. Measure the amount of horizontal overhang between the building s outer wall and the roof s outer edge. 1 roof square 100 square feet.

Then calculate the pitch of the roof by placing a level against it angling the level so the bubble is centered and measuring the distance between the end of the level and the roof. 8 inches and you have an 8 in 12 pitch. Thus in a simple style house you ll only have to click on the corners. Calculating an area of a triangle when estimating a roof.

First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. Outside of the u s a degree angle is typically used. It does have to contain all the straight lines of your roof and an accurate measurement of those lines. Remember it doesn t have to be to scale or look pretty.

The length l times the height h of a triangle is twice its area a2. 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. So if you divide your answer of a product of length times height by two you will get the area of a triangle. Pitch measurement method 1.