2018 International Mechanical Code®

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Establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design. For the most current adoptions details go to International Code Adoptions

Important changes include:

  • Added coverage of pollution control units.
  • A new exception was added to recognize Type I kitchen hoods listed for clearances to combustibles of less than 18 inches.
  • Added coverage for a newer type of non-metallic duct, phenolic duct.
  • New coverage for high volume large diameter fans (HVLD), also referred to as high volume low speed (HVLS) fans.
  • Relaxed requirements for sealing of duct joints and seams for Snap- and Button-lock duct joints located within the thermal envelope.
More Information
Description: Links

Front Matter (Title Page, TOC, Preface and Forward)

Referenced Standards

Description: Extra

Establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design. Important changes include:

  • Added coverage of pollution control units.
  • A new exception was added to recognize Type I kitchen hoods listed for clearances to combustibles of less than 18 inches.
  • Added coverage for a newer type of non-metallic duct, phenolic duct.
  • New coverage for high volume large diameter fans (HVLD), also referred to as high volume low speed (HVLS) fans.
  • Relaxed requirements for sealing of duct joints and seams for Snap- and Button-lock duct joints located within the thermal envelope.
Publisher ICC
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