ISOVER delivers remedies with Final mineral wool that supply fire resistance to metal ductwork though offering thermal and acoustic Added benefits. If the outlet terminates at a point that is not quickly obtainable, it ought to be retained unobstructed and will only be coated using a non-combustible grille or louvre https://fire-resisting-ductwork-i89001.madmouseblog.com/17591430/considerations-to-know-about-grease-tight-extract-ductwork