A spray foam survey is an inspection of foam applied beneath a roof covering, recording what it is and how the timber underneath is coping.
The inspector climbs into the roof void, notes the foam type, depth and spread, tests accessible rafters with a moisture meter and photographs what can be seen.
A written report setting out the findings, any areas that stayed hidden and a plain recommendation. It is ready to forward to a lender, buyer, conveyancer or builder.
Before putting a house on the market, once a valuer mentions foam, if you notice staining or a musty loft, or ahead of panels or a loft room.