Ho To Measure A Roof

Measuring your roof from the ground 1.

Ho to measure a roof.

Calculate the pitch of the roof. The pitch is the steepness of the roof. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. You will need to express this size in terms of square feet.

Remember it doesn t have to be to scale or look pretty. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. The length l times the height h of a triangle is twice its area a2. And even flat roofs usually have a little bit of a slope so you might want to use a roof pitch multiplier once you have your area figured out 1.

Measuring the length and width of each plane by hand 1. Find the length and width of the building s exterior walls. 8 inches and you have an 8 in 12 pitch. The first thing you need to do is download and install google earth pro.

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. Climb a ladder with a notepad a pencil and a measuring tape. Thus in a simple style house you ll only have to click on the corners. 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. Stretch your tape measure along the walls from end to end. 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. Draw an overhead view of your roof.

L h 2 area calculating an area of a triangle when estimating a roof. For help determining the area of a sloped roof see here. The first step in a free roofing estimate is measuring the roof dimensions. For example what we need on the picture of the roofs below are measurements of all the blue or red lines.

1 roof square 100 square feet. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Stow these items in a shoulder or hip pack while.

Roughly draw out your roof on a piece of paper. Use a pitch. If this distance measures 4 inches you have a 4 in 12 pitch. Each area on the roof is a single plane which just means it s a surface with a.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements. So if you divide your answer of a product of length times height by two you will get the area of a triangle.