Permadesign

Approximate the harvestable rain water runoff for your roof in 5 easy steps:

• Step 1: Locate your property
• Step 2: Outline harvestable surfaces
• Step 3: Manage your surfaces
• Step 4: Save your results
• Step 5: Share the site

• Enter the location of your site into the lookup box, autocomplete suggestions will be offered.
• Once the address is fully entered hit the Locate Site button.
• The map will zoom to your location and display a marker and a brief info window.
• Use the Pan and Zoom buttons on the map or your mouse to optimize your view.

Note: only sites within the Continental US are supported.

• Click the Draw button to begin outlining surfaces.
• Click on the map on a corner of the desired surface and an initial point will be drawn.
• Click on the additional corners of the building to trace the rest of the surface.
• To close the surface re-click the first point placed or double-click the last point while placing.
• Multiple surfaces can be outlined one after another.
• Switch to Edit mode to modify surfaces by dragging highlighted boxes.
• Each placed line will also contain a mid-point that can be dragged to generate new sides for the surface.
• While in edit mode the last change made can be undone by clicking the undo icon next to the modified point.
• You can also switch back and forth between Draw mode and Edit mode to add and edit additional surfaces.

• Surfaces can be given custom names by clicking on the surface name and renaming.
• The preferred units can be set either before or after drawing surfaces.
• Any unwanted surfaces can be deleted at any time by click the 'delete' icon in the surface list.

• You can print numerical results by clicking the "Print" button.
• It is also easy to take a screen shot and save your work.
• You can then email or print your results from that file.

• Share the tool on popular social media sites by clicking the relevant icon.
• You may be requested to log into your social media account.