After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof.
Estimate roof size google maps.
Google maps has more uses other than just providing you with general directions.
Quick video on how to use google maps to measure area and viewing properties for estimating.
The google maps area calculator is not 100 accurate.
These instructions only apply to the new google earth.
You can measure distances and areas on the map with it.
Measurements don t account for changes in elevation.
And even flat roofs usually have a little bit of a slope so you might want to use a roof pitch multiplier once you have your area figured out 1.
The first thing you need to do is download and install google earth pro.
When you have eliminated the javascript whatever remains must be an empty page.
Find local businesses view maps and get driving directions in google maps.
Google earth pro was the paid version of google earth it used to cost 400 a year but it s free now.
Go to google maps.
Similarly if you using the area calculator tool to measure a roof with multiple levels you should do the individual section separately.
You can only do this on its website though as the app doesn t support it yet.
Measurements may not be 100 accurate especially in areas with 3d terrain and buildings.
For best results measure using a top down view.
Enable javascript to see google maps.
Don t use this as your only method of measuring.
Project sunroof is a solar calculator from google that helps you map your roof s solar savings potential.
While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.
You can also measure the size of polygons that you draw in google earth.