3M 615+ Fire Barrier Duct Wrap Roll

3M 615+ Fire Barrier Duct Wrap Roll Overview Thin, lightweight and flexible, 3M Fire Barrier Duct Wrap 615+ provides excellent insulating capabilities and offers a space-saving alternative to traditional bulky fire protection methods obtained through a gypsum wall shaft or enclosure. This wrap is commonly used in commercial kitchen grease ducts, as well as ventilation ducts. Additional Information & Details Proven alternative to 1- and 2-hour fire resistant rated shaft enclosures for grease ducts Lightweight and thin, for ease of installation and space saving, while allowing custom installation applications with multiple layers where needed Butted inner layer in 2-layer grease duct applications Zero clearance to combustible throughout the entire enclosure system