Exactly what is the thickness of the fire-rated duct? A fire-rated duct ought to be built with a single pores and skin, getting a complete thickness not exceeding 2mm. This measurement contains the intumescent coating, that is important for boosting fire resistance. In accordance with the Environment Health Organisation (WHO), https://jaidenfvkyo.popup-blog.com/38176585/the-fire-resistant-ductwork-manufacturers-diaries