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// CODE SNIPPET

507.4.3 Clearance Integrity

California Mechanical Code 2019 > 5 Exhaust Systems > 507.0 General Requirements > 507.4 Clearance > 507.4.3 Clearance Integrity
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In the event of damage, the material or product shall be repaired and restored to meet its intended listing or clearance requirements and shall be approved by the Authority Having Jurisdiction. [NFPA 96:4.2.4.1]

507.4.3.1 Fire

In the event of a fire within a kitchen exhaust system, the duct and its enclosure (rated shaft, factory-built grease duct enclosure, or field-applied grease duct enclosure) shall be inspected by qualified personnel to determine whether the duct and protection method are structurally sound, capable of maintaining their fire protection function, and in accordance with this chapter for continued operation. [NFPA 96:4.2.4.2]

507.4.3.2 Required Protection

Protection shall be provided on the wall from the bottom of the hood to the floor, or to the top of the noncombustible material extending to the floor, to the same level as required in Section 507.4. [NFPA 96:4.2.4.3]

507.4.3.3 Protection Methods

The protection methods for ducts to reduce clearance shall be applied to the combustible or limited-combustible construction, not to the duct itself. [NFPA 96:4.2.4.4]

Related Code Sections


507.3.3 Exhaust Systems, Clearance Integrity
In the event of damage, the material or product shall be repaired and restored to meet its intended listing or clearance requirements and shall ...
California Mechanical Code 2016 > 5 Exhaust Systems > 507.0 General Requirements > 507.3 Clearance > 507.3.3 Clearance Integrity
507.4.3 Exhaust Systems, Clearance Integrity
In the event of damage, the material or product shall be repaired and restored to meet its intended listing or clearance requirements and shall ...
California Mechanical Code 2019 > 5 Exhaust Systems > 507.0 General Requirements > 507.4 Clearance > 507.4.3 Clearance Integrity
507.4.3.3 Exhaust Systems, Protection Methods
The protection methods for ducts to reduce clearance shall be applied to the combustible or limited-combustible construction, not to the duct itself ...
California Mechanical Code 2019 > 5 Exhaust Systems > 507.0 General Requirements > 507.4 Clearance > 507.4.3 Clearance Integrity > 507.4.3.3 Protection Methods
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