## Roof Square Footage By Address

### Can I measure a roof from Google Maps?

The good news is there is a way to measure your roof in a safe and accurate way, all from the comfort of your home: use Google Earth. With just a few clicks, you can search for any address, get a bird’s eye view of your roof, and get the roofing measurements that you need.

To find your roof’s total square footage:
1. Measure the length and width of each plane on the roof (including dormers) then multiply length times width.
2. Add the square footage of each of the planes together.

### How do you estimate roofing?

To do this, measure the length and width of each plane on the roof, including dormers. Then, multiply length x width to get the square footage of each plane. Finally, calculate your roof’s total square footage by simply adding the square footage of each of the planes together.

Roof Size and Pitch

A new roof on a 1,000-square-foot house costs an average of \$4,000 to \$5,500 while the cost to replace a 3,000-square-foot home’s roof can rise to an average of \$11,200 to \$16,000. ### What is the average price to tear off and replace a roof?

Around \$12,000 to \$15,000

Most homeowners can expect the average cost to tear off and replace a roof to be around \$12,000 to \$15,000. This price is based on a home with 3 bedrooms, 2 bathrooms, a walkable roof pitch, a little roof complexity, and dimensional asphalt shingles.

### Average Cost to Replace a Roof

House (& Roof**) by Square FootRe-Roofing Cost*
1,100 (1,160)\$4,200 – \$6,000
1,200 (1,265)\$4,500 – \$6,500
1,500 (1,581)\$5,500 – \$8,000
1,600 (1,687)\$6,000 – \$8,500

### CALCULATING THE AREA (TRUE)

If you want to get the exact area measurement for your roof, you can follow these steps:

1. Once you have your roof’s pitch, divide the number by 12. (For example, if your roof’s pitch is 4 in 12, you would divide 4 by 12. This would yield 1/3.)
2. Next, square your result. (If your number is 1/3, squared would yield 1/9.)
3. After that, add 1 to your number. (1/9 + 1 = 10/9.)
4. Next, figure out the square root of your new number. (The square root of 10/9 is 1.05.)
5. Next, use your measuring tape to measure the length of your house. (Be sure to include overhangs.)
6. After that, measure the width of your house. (Be sure to include overhangs.)
7. Multiply your house length by your house width to get the area. (For example, 40 feet x 30 feet = 1,200 square feet.)
8. Next, multiply the area by your roof’s pitch. (1,200 x 1.05 = 1,260 square feet.)
9. To allow for hips, ridges, and waste, add 10% of your final number for a gable roof and 17% of your final number for a cottage roof. (Your total number would be either 1,386 or 1,474 square feet.)

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