This sheet is a continuation of the A1.04 sheet...

A1.05 – Rated Penetration Details

This sheet is project-specific and only included when rated wall or floor assemblies require penetration protection per building code and manufacturer standards. It will not be used on all projects — please include only when applicable.

What’s Included (when required):

• UL-Listed or Manufacturer-Approved Penetration Details for:
  
  

  • Pipes, ducts, and conduit through fire-rated walls/floors
    
    

  • Electrical boxes and recessed fixtures
    
    

  • Sleeved or grouped penetrations with intumescent sealants or wrap systems
    
    

  • Reference Tags that coordinate with assembly tags on wall types and floor plans
    
    

  • Annotations and Notes clarifying sealant systems, caulking, fire collars, and installation requirements
    
    

Instructions:

• Confirm with your PM / SD whether this sheet is needed based on project type (multifamily, mixed-use, etc.).
  
  

• Penetration details must match approved UL systems or manufacturer submittals provided by MEP consultants.
  
  

• Do not reuse old details unless verified for current UL systems and project-specific conditions.
  
  

• If included, ensure correct titleblock is applied and sheet is placed in numerical drawing order.
  
  

Why it Matters:
Rated penetrations are a frequent point of inspection failure and must be documented clearly to avoid field issues. This sheet ensures life safety compliance and communicates expectations to trades and inspectors.