Insulation MixChimney insulation mix is a vermiculite based concrete mixture that is poured between the liner and the chimney walls. This It's easy to work with. It will fill voids and cracks in the masonry work while strengthening the chimney walls. It cures into a lightweight, semi hard mass that supports a liner within the chimney and forms a thermal barrier that keeps the flue gases warm. This product adds performance to your liner and is very durable. It is UL listed for zero clearance to combustibles. It will seal dangerous cracks and any voids that you have in your chimney. The mix eliminates moisture buildup between the liner and the chimney structure. It is accepted by building code officials and what's better is that it can also be removed.Purchase insulation mix |
mixture is formed with water in a ratio of 3.5 parts insulation mix to 1 part water. This mix is available in 45 lb. bags and each bag will fill 2.5 cubic ft.