Selkirk-Metalbest Metalbest Sure-Temp 6" Class A Chimney Pipe Attic Insulation Shield

6" Class A Chimney Pipe Attic Insulation Shield from Sure-Temp The Insulation Shield is required to guard against the hazard of blown-in or blanket insulation filling any framed opening or contacting the chimney and possible contact of combustibles against the chimney. This part is required when running through a framed opening such as an attic, even if there is no insulation in the space. The only exception to this AIS installation is if you install a full enclosure around the chimney in the attic area ...