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.
Measure my roof.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
To find the pitch of your roof you ll first.
The images that appear on google maps are often at a slight angle which combined with the angle of a roof can cause errors.
Roof reports and wall reports made easy.
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.
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Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
L 30 feet h 12 feet 30 12 2 180 square feet.
How to calculate your roof square footage 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 this reason it is best to outline the roof at points which are all at the same elevation.
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 2 2.
The pitch is the steepness of the roof.
How to use the google maps area calculator tool to measure a roof special precautions must be taken when measuring the area of a roof.
1 roof square 100 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.
If this distance measures 4 inches you have a 4 in 12 pitch.
Calculate the pitch of the roof.
Measuring your roof from the ground 1.
Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Start by measuring the length and width of the roof in feet as you re standing on the ground.
Stretch your tape measure along the walls from end to end.
We ll use satellite imagery and trigonometry to calculate your roof s measurements.
8 inches and you have an 8 in 12 pitch.
Find the length and width of the building s exterior walls.
Then determine the area of the roof as if it were flat.
The length l times the height h of a triangle is twice its area a2.