Measure My Roof

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Measure my roof.

8 inches and you have an 8 in 12 pitch. Start by measuring the length and width of the roof in feet as you re standing on the ground. 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. 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. The length l times the height h of a triangle is twice its area a2. Then determine the area of the roof as if it were flat. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

The pitch is the steepness of the roof. For this reason it is best to outline the roof at points which are all at the same elevation. Measuring your roof from the ground 1. We ll use satellite imagery and trigonometry to calculate your roof s measurements.

To find the pitch of your roof you ll first. L 30 feet h 12 feet 30 12 2 180 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. The images that appear on google maps are often at a slight angle which combined with the angle of a roof can cause errors.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. Outside of the u s a degree angle is typically used. Find the length and width of the building s exterior walls. 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. 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. 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. Calculate the pitch of the roof.

If this distance measures 4 inches you have a 4 in 12 pitch. 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. Roof reports and wall reports made easy. Pitch measurement method 2 2.