How To Measure My Roof Size

If this distance measures 4 inches you have a 4 in 12 pitch.

How to measure my roof size.

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. To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high. The first technique is referred to as the shingle count method which is used for estimating the measurements of all rectangular shaped sections of a roof. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

It will also show the perimeter of the shape. The first step in a free roofing estimate is measuring the roof dimensions. Thus in a simple style house you ll only have to click on the corners. Stretch your tape measure along the walls from end to end.

1 roof square 100 square feet. You would then consider the pitch of your roof i e. 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. As you add points the area will be updated below and converted into acres square feet meter kilometers and miles.

Continue to click along the outside edge of the shape you want to calculate the area of. 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. Outside of the u s a degree angle is typically used. Calculate the pitch of the roof.

Use a pitch. Pitch measurement method 1 1. Enter an address or zoom into the map then click on the starting point of your shape. The length l times the height h of a triangle is twice its area a2.

Find the length and width of the building s exterior walls. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. Measuring your roof from the ground 1. To find the pitch of your roof you ll first.

Conversely you could measure the roof from the ground using a very rough approximation. Calculating an area of a triangle when estimating a roof. You will need to express this size in terms of square feet. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

The pitch is the steepness of the roof. 8 inches and you have an 8 in 12 pitch.