2021 International Mechanical Code

2021 International Mechanical Code , 2021 IMC 2021 by ICC

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$49

$109

by International Code Council (Author)

In Stock

7 Days Return

TAB5930

Publisher ‏ : ‎ ICC (distributed by Cengage Learning)

Publication Date ‏ : ‎ March 6, 2020

Edition ‏ : ‎ 1st

Language ‏ : ‎ English

ISBN-10 ‏ : ‎1609839641

ISBN-13 ‏ : ‎ 978-1609839642

Item Weight ‏ : ‎ 1.25 Pounds

Dimensions ‏ : ‎ 8.5 x 0.5 x 11 inches

The IMC establishes minimum regulations for mechanical systems through both prescriptive requirements and performance-based provisions. It is built on broad, flexible principles that support the use of new materials, technologies, and design approaches.

Key updates in the 2021 IMC include:

Clothes dryer exhaust terminals must now be located at least 3 feet away from any building opening.
Polyurethane spray-applied foam used on the exterior of ducts in attics and crawl spaces must comply with specific smoke and flame spread index limits.
Fire and smoke dampers must be installed with approved access points to allow proper inspection and maintenance.
Refrigerant tables have been revised to incorporate newly approved refrigerants.
New requirements added for condensate termination identification markings and limitations on discharge locations.
Approved factory-built combination intake/exhaust terminations are now allowed, easing previous separation distance requirements.
Minimum mechanical ventilation rates for whole-house balanced ventilation systems have been reduced by 30%.
Continuous exhaust operation is now required for manicure and pedicure stations.
Grease ducts must include a horizontal cleanout within 3 feet of any horizontal discharge fan.
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