The FyreWrap Elite is usually also applied being a two-layer substance for protecting commercial kitchen grease ducts. Analyzed for every ASTM E2336, the wrap content is acceptable as an alternative to a standard fireplace-rated shaft and calls for zero clearance to combustibles. A passive fireplace defense Answer for air distribution https://grease-tight-extract-duct67890.bloginder.com/37729922/detailed-notes-on-grease-tight-extract-ductwork