What does a solar installer need to evaluate before making an offer?

Before your solar installer can make you a suitable offer, he will need to be able to inspect your roof on site. Your roof should be easy to access in order to check the following things among others:

• Prevention of possible shadows on your future system from trees, chimneys, satellite dishes, dormers, neighboring houses, etc.

• Structural analysis of the roof and, as necessary, the building, as it has to bear not only the weight of the system, but also wind and snow loads.

• Electrical requirements for the installation of a PV system, building connection box, or a building connection column.

• Which type of installation (in-roof or rooftop installations) is best suited to your roof.