How accurate are satellite roof measurements?
In most cases, satellite and aerial roof measurement technology is 99% accurate, if you follow a few simple rules. Achieving accurate roof measurements manually isn’t any different. A manual roof takeoff by one roofer can easily vary from that of another.
How do I find the dimensions of my roof?
Multiply your house length by your house width to get the area. (For example, 40 feet x 30 feet = 1,200 square feet.) Next, multiply the area by your roof’s pitch. (1,200 x 1.05 = 1,260 square feet.)
How are blueprints measured?
- Unroll the blueprint onto a flat surface.
- Find the scale of the drawing.
- Choose a scaled ruler that accurately matches the scale of the drawing.
- Lay the proper scale next to the item on the drawing and take the measurement.
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How do you figure roofing squares?
For an easy up and over, walkable gable roof, you’ll multiply the footprint of the roof by 1.3 to get the square footage of your roof. For a hip roof with a low slope, you’ll multiply the footprint of the roof by 1.4 to get the square footage of your roof.
How many square is a 1500 square foot roof?
For a 1500 square foot house, you will need approximately 19 squares or 57 bundles or 1653 pieces of 3-tab standard-sized shingles (12 inch by 36 inch) when overhangs is 1 feet and roof slope is 4/12.