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HS-JS — Joist Shield

How to Specify

Using tables from the National Fuel Gas Code or our Sizing & Application Guide, determine the diameter of venting required. The Sizing & Application Guide also offers tips on good design including multi-appliance system sizing and design. The System Design and Installation Guide is an additional resource.

HS-JS — Joist Shield


Submittal Data (41 KB, PDF)

The Joist Shield is used when installing an 8" chimney in a 16" O.C. joist construction. The Joist Shield provides UL-approved clearance between the chimney and the joist. Also serves as a firestop.AV_pg6 AV HS-JS Joist Shield prod dim

Available sizes (inches)

Part No. GalvanizedSizeA