Deciding on the suitable fire-rated ductwork is hard due to the complexity of your duct development (passing via different fire compartments), the purpose in the system during the encompassing area as well as fire problems. Totally encapsulated in aluminium foil for cleaner installation and resistance to grease or humidity ingress https://ductworth-installation89900.glifeblog.com/35378244/ductworth-installation-can-be-fun-for-anyone