Officially approved for class T roofing Wooden House, as the first in America, has received the coveted approval of shingles for roofing, class T. The correct designation today is Broof (t2). This also means that you have the authorities' word that shingles are a very safe roof solution without fire hazard. You can therefore legally and safely lay thatch on i.a. battens alone. This gives the additional advantage that chipping must be covered within 10 meters of the nearest neighboring boundary and that expensive fire insurance premiums are avoided, as roofing is thereby considered a fixed roof, corresponding to e.g. a roof of tile or slate.