Assignment task:
Non-combustible (type II) constructed building has a different recurring fire spread problem: fire spreads on the roof deck. A type II building has steel or concrete walls, floors and structural framework; however, the roof covering is combustible, it burns and spreads fire. The roof covering of a type II building can be a layer of asphalt water proofing, with a combustible felt paper covering. Another layer of asphalt may be mopped over the felt paper. Combustible foam insulation may be placed on top of the asphalt, and another layer of asphalt mopped over the foam insulation. When a fire occurs inside a type II building, flames rising to the underside of the steel roof deck may conduct heat through the metal and ignite the combustible roof covering above. Conduction is the transfer of heat through a solid. The asphalt, felt paper and foam insulation may bum and spread fire along the roof covering. After a fire has been extinguished inside a type II building, the officer should go to the roof and examine the roof covering directly above for extension. If necessary, a hose line should be stretched to the roof for extinguishment. Modern type II and type III buildings have combustible membrane roof coverings which are more combustible than the asphalt roof covering.
After reading the above information, what are your opinions on Type II construction?