// CODE SNIPPET
1404.3.3 Material Vapor Retarder Class
JUMP TO FULL CODE CHAPTER
The vapor retarder class shall be based on the manufacturer's certified testing or a tested assembly.
The following shall be deemed to meet the class specified:
|Class I:||Sheet polyethylene, nonperforated aluminum foil with a perm rating of less than or equal to 0.1.|
|Class II:||Kraft-faced fiberglass batts or paint with a perm rating greater than 0.1 and less than or equal to 1.0.|
|Class III:||Latex or enamel paint with a perm rating of greater than 1.0 and less than or equal to 10.0.|
Related Code Sections
1404.3.3 Exterior Walls, Material Vapor Retarder Class
The vapor retarder class shall be based on the manufacturer's certified testing or a tested assembly. The following shall be deemed to meet ...
Building Code 2018 of Illinois > 14 Exterior Walls > 1404 Installation of Wall Coverings > 1404.3 Vapor Retarders > 1404.3.3 Material Vapor Retarder Class
(A) Wiring Methods and Materials, Vapor Seals
Busway runs that have sections located both inside and outside of buildings shall have a vapor seal at the building wall to prevent interchange ...
National Electrical Code 2017 of Illinois > 3 Wiring Methods and Materials > 368 Busways > 368.234 Barriers and Seals > (A) Vapor Seals
R402.1.1 [RE] Residential Energy Efficiency, Vapor Retarder
Wall assemblies in the building thermal envelope shall comply with the vapor retarder requirements of Section R702.7 of the International ...
2018 Illinois Energy Conservation Code Standards for Privately Funded Commercial Facilities and Standards for Residential Buildings > 4 [RE] Residential Energy Efficiency > R402 Building Thermal Envelope > R402.1 General (Prescriptive) > R402.1.1 Vapor Retarder
(A) Special Occupancies, Wiring and Equipment — Vapors
All electrical wiring and equipment within the Class I location (containing vapor only — not residues) defined in 516.5 shall comply ...
National Electrical Code 2017 of Illinois > 5 Special Occupancies > 516 Spray Application, Dipping, Coating, and Printing Processes Using Flammable or Combustible Materials > 516.6 Wiring and Equipment in Class I Locations > (A) Wiring and Equipment — Vapors
(3) Special Occupancies, Cables Capable of Transmitting Gases or Vapors
Cables with a gas/vaportight continuous sheath capable of transmitting gases or vapors through the cable core shall not be required to be sealed ...
National Electrical Code 2017 of Illinois > 5 Special Occupancies > 501 Class I Locations > 501.15 Sealing and Drainage > (E) Cable Seals, Class I, Division 2 > (3) Cables Capable of Transmitting Gases or Vapors