Roofing reports

Roof Area Calculator | Google Maps

by with No Comment Aerial Roof MeasurementRoof measurementSatellite Roof Measurement
Tips:
  1. On your computer, open Google Earth.
  2. Search for a place, or select a location on the globe.
  3. On the left, click Measure. . …
  4. Click the map to set measurement points.
  5. To remove a point, on the right, click Undo .
  6. To complete your line measurement, double-click on your last point, or click Done .
A roofing square is an area of roof that measures 10 by 10 feet to make up a total of 100 square ft. This critical unit of measurement helps your contractor determine how much material they’ll need to order for your roofing project, from underlayment to bundles of roof shingles.
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.
 To calculate this is simple: a roofing square is 100 square feet, which means that 20 roofing squares will accommodate a 2000 square feet roof. To obtain 20, you need to divide the total square feet by the size of one roofing square- 100 square feet.
That makes a total of 32 squares of roof for an “1800 square foot” house. 4) Roofers calculate roof area in “squares,” with a square being 100 square feet of roof area.

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Estimate Roof Square Footage Google Maps

by with No Comment Roof measurementSatellite Roof Measurement
Tips:
  1. On your computer, open Google Earth.
  2. Search for a place, or select a location on the globe.
  3. On the left, click Measure. . …
  4. Click the map to set measurement points.
  5. To remove a point, on the right, click Undo .
  6. To complete your line measurement, double-click on your last point, or click Done.
Right-click on the map at your starting point and choose the Measure distance option. Add points around the location’s boundary. Once you close the shape by clicking on the starting point, the Google Maps area calculator will automatically process the area of your shape.
Comparisons are made at sites in various states including rural and urban locations. The comparisons show that Google Earth images yield reasonably accurate measurements (RMSE 0.569 feet) over the scale of typical accident reconstruction distances.
First, measure the length and width of each surface on the roof, then multiply these values to get the square footage of that surface. Make sure to document the number of chimneys, skylights or other obstructions and include dormers in your measurements.
There are 12 roofing squares in 1200 square feet. The surface of roofs is basically measured in squares. One square is equal to 100 square feet of the roof. To calculate the number of squares of the roof, divide the total square feet by 100.
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.
Once you’ve determined the square footage you need to cover, you can figure out the number of bundles you need by dividing the total square footage by 33. Example: if you have 2,000 square feet of roof to cover, that means you’d need about 60 bundles (2,000 divided by 33 is about 60).
The average cost for a square of roof shingles, which is 100 square feet, ranges from $170 to $400, depending on materials used. On the low end, asphalt shingles cost an average of about $150 per square, while high-end slate shingles average around $1,200 per square.