![]() ![]() In this article, we’ll walk you through how to measure a roof using Google Earth. Satellite imagery can be used to measure a roof to a useful degree of accuracy and provide detailed measurements of the various roof sections and many rooftop features. Fortunately, technology has advanced to the point where measuring a roof is now easier than ever before. Measuring a roof can be a daunting task, especially when it comes to larger buildings. If you want to measure the area of a pitched roof, please see How to Find the Area of a Sloped Roof.Īnd even “flat” roofs usually have a little bit of a slope, so you might want to use one of the very low roof pitch multipliers once you have your area figured out. A very steep pitched roof can have up to twice the surface area of a flat roof that covers the same amount of ground.Īnd satellite images will not help you find the pitch of a roof. They can’t tell if the roof is rising at a steep angle. Satellites look almost straight down at the roof. ![]() Satellite images cannot account for the extra surface area that a pitched roof has compared to a flat roof with the same footprint area. Keep in mind that for measuring roof areas, this measuring technique is only usefully accurate for low-slope or “flat” roofs. I believe they all got that figure from an old post on the Google Earth blog that has since been deleted.Īnyway, if you’re going to measure a roof using satellite images, you should try to be sure the roof hasn’t been altered recently. There is currently no official guidance from Google about the average age of the images used in Google Earth, but there are a lot of websites claiming the average image is 1 to 3 years old. But the images they use are typically anywhere from a few weeks to a few years old. Google Earth works by compiling a massive database of satellite images which they combine to create a seamless collage that covers almost the entire globe in amazing detail. ![]() Nobody on Earth has the capacity to let millions of random users control a camera on a satellite at the same time, which is what would be necessary for that.Īnd they certainly wouldn’t let anyone use a satellite-based camera for free. To do that, you would have to be able take control of the camera on a satellite, point it at your house and zoom in. If you’re here wondering if you can see a real-time satellite image of your roof, the answer is “no, you can’t”. Some Notes Before We Start No, You Can’t See a Satellite View of Your Roof in Real Time ![]()
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