Roof Measurements In Squares

L h 2 area calculating an area of a triangle when estimating a roof.

Roof measurements in squares.

Step 2 section the roof. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. Whenever a contractor is measuring a roof they know that each square of roofing shingles is 3 bundles for the most part and if you have 20 squares of roofing you will need 60 bundles of shingles. A home s roof is measured in squares.

Step 3 consider the roof slope. If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width. Step 4 take ground measurements. Square used outside of the roofing industry.

1 roof square 100 square feet. So if you divide your answer of a product of length times height by two you will get the area of a triangle. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. The length l times the height h of a triangle is twice its area a2.

Step 1 understand your roof surface. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. The answer is the number of roofing squares for the roof. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.

If your roof is 5 000 square feet. Wear shoes boots with proper traction. It is often compared to slope but is not exactly the same. Residential commercial multi family roof reports gaf quickmeasure is the complete aerial roofing measurement software that delivers roof measurements in under an hour for single family homes and under 24 hours for multi family and commercial properties.

For your safety use a sturdy reliable ladder and secure to your roof. Super fast super affordable roof measurements. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. 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.

How to measure roof square. Use a tape measure to note the length and width of your roof including dormers. Estimate the pitch of the roof.