They are large and heavy triple-glazed Velux. The rafters have been replaced with 150mm doubled/tripled to support them, and the ridge beam that they sit in has been replaced with steel. This is based on structural engineer's specs... hope he hasn't fucked it lol!
They are large and heavy triple-glazed Velux. The rafters have been replaced with 150mm doubled/tripled to support them, and the ridge beam that they sit in has been replaced with steel. This is based on structural engineer's specs... hope he hasn't fucked it lol!