Why panel installers ask about roof foam, and what a pre-install check provides.
Solar fixings go through the roof covering, so installers want to know exactly what is fixed to the slates or tiles from below.
Foam bonded to battens can change how brackets grip, and it may be hiding rafters that deserve a look before anything is drilled.
Get the foam recorded in a survey and give the report to your installer, so the quote and the method both reflect the real roof.
