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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