UL 907A:2007 PDF Download

The UL 907A:2007 standard provides requirements for termination caps that are used at the end of masonry residential chimneys. These termination caps are designed to be attached to chimneys constructed in accordance with NFPA 211 and applicable codes such as the International Residential Code, International Mechanical Code, and Uniform Mechanical Code.

This standard specifically applies to termination caps used with masonry chimneys that have clay-flue linings, which comply with ASTM C 315. It should be noted that requirements for termination caps used with flue liners are covered under UL 1777, and requirements for termination caps used with factory-built chimneys and fireplaces are covered under UL 103 and UL 127, respectively.

Furthermore, the factory-built termination caps covered by this standard are intended for use in single-cap applications only and are not designed for chimneys with multiple flues or use with multiple chimneys.