1. Drag and drop the pin
1. Draw a shape to cover your roof
(click at the corners and complete the shape by clicking the first dot)
1. Click on next if you have nothing to exclude
1. Rotate panels to optimize panel direction
1. Click on your roof material below
(select the type)
2. What is the angle of your roof?
Enter the angle if you know?
3. How old is your roof?