Measuring your roof from the ground 1.
How to measure the size of my roof.
The length l times the height h of a triangle is twice its area a2.
The pitch is the steepness of the roof.
The first step in a free roofing estimate is measuring the roof dimensions.
Less than 6 inches is a low pitch 6 to 9 inches is a medium pitch and more.
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.
Roof reports and wall reports made easy.
2 feet level will cost you about 15 at home depot or lowe s etc.
To measure a roof you will need the following tools.
We ll use satellite imagery and trigonometry to calculate your roof s measurements.
1 roof square 100 square feet.
Tape measure preferably 100 feet long you can get one at home depot or lowe s for about 17 tax and if you don t.
If this distance measures 4 inches you have a 4 in 12 pitch.
Use a pitch.
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.
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.
Stretch your tape measure along the walls from end to end.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
8 inches and you have an 8 in 12 pitch.
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.
Thus in a simple style house you ll only have to click on the corners.
To find the pitch of your roof you ll first.
You will need to express this size in terms of square feet.
You will need the level to get the exact roof pitch.
Calculate the pitch of the roof.
It is often compared to slope but is not exactly the same.
Find the 12 inch point on the level and measure straight down to the roof using a tape measure.
Find the length and width of the building s exterior walls.
