3 ms·They inspect the roof wood? How? Cut open the ceiling? Rip off shingles?by nfRfqX5n 2y agoThey inspect the roof wood? How? Cut open the ceiling? Rip off shingles?loopdoend 2y agoPresumably going through the atticmanarth 2y agoWhich is where the foam is. And the roof timbers are covered by the foam, hidden from easy visual examination.arethuza 2y agoI couldn't tell from the article if they meant the roof joists or the rafters.