In almost any case, the fire performance of the duct which penetrates a fire resisting or separating ingredient will have to require careful thing to consider by specifiers. FastWrap XL is made specifically to deliver the highest general performance fire insulation of kitchen and ventilation ductwork around the globe. In https://fire-rated-insulation-for01122.tusblogos.com/37233148/fire-rated-ductworth-fundamentals-explained