Why installers ask about roof foam and what a pre-install check gives them.
Solar brackets fix through the roof covering, so installers want to know what is attached to the tiles or slates from underneath.
Foam on the battens can change how a bracket grips, and it may be hiding rafters that ought to be inspected before anyone starts drilling.
Have the foam recorded in a survey and give the report to your installer, so the quote and the method both match the roof you actually have.
Related: Solar and loft room pre-work check
