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The Area tool allows you to find the dimensions of a roof facet, including the length of gutters and ridges, total surface area and the pitch of the roof facets from an oblique photo.

In addition to this document, you can view our video on how to use the Area Tool.

This guide includes the following sections:

When Should You Use This Tool

The Area tool can be used to find the dimensions of a roof facet, including the length of gutters and ridges, total surface area, and the pitch.

Also use the Area tool to find the pitch of hip roofs.

Accessing the Area Tool

To access the area tool go to the location you want, then switch to oblique view, either by clicking the View Oblique Photos in the location information, or by using the compass tool:

Once you are in oblique view, click the Area tool:

Measuring Areas

Zoom into the property you want to measure, then select the area you want to measure using the lines:

Click Next, and you will see the vertical view of that property. Drag the lines to the area you are measuring:

You will now be able to see the area and perimeter in various units, and the pitch in either degrees or rise/run ratio.

You might find it helpful to click between the primary view and the secondary view when you are measuring the area.

Once you are done, you can change to any view, and the area will still be there. In this example, the view is now oblique with East orientation:

Tips for Measuring Areas

  • Zoom in as much as possible and take your time for best results
  • Measure each roof section separately, do not measure the whole roof or multiple roof sections in one area
  • Switch back to the Primary view to check line placement and orientation if you are not sure

  • You can also choose another photo from a different direction from the drop-down list

The Area tool should be used to measure individual roof facets. The tool cannot provide the average pitch or the total area of the whole roof, as shown in the following example.

When the whole roof is measured the pitch is 31 degrees:

When each roof section is measured separately the pitch is 22.1 degrees:

If you draw the line when not zoomed in, the result is also a less accurate measurement. You can see an example in Tips for Measuring Lines.

Note: Viewing Oblique photos and measuring areas are available only in the New MapBrowser.

Exporting Image with Areas

You can use the Export Tool to export a screenshot, which will include the area measurements and the survey date:

Note: The survey date in the screenshot may differ from the actual capture date of the image, as explained in Survey Date and Photo Time.

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