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// CODE SNIPPET

1403.3 Vapor Retarder

NYC Building Code 2008 > 14 Exterior Walls > 1403 Performance Requirements > 1403.3 Vapor Retarder
JUMP TO FULL CODE CHAPTER
An approved vapor retarder shall be provided.
Exceptions:
  1. Where other approved means to avoid condensation and leakage of moisture are provided.
  2. Plain and reinforced concrete or masonry exterior walls designed and constructed in accordance with Chapter 19 or 21, as applicable.

Related Code Sections


1403.3 Exterior Walls, Vapor Retarder
An approved vapor retarder shall be provided. Exceptions: Where other approved means to avoid condensation and leakage of moisture ...
NYC Building Code 2008 > 14 Exterior Walls > 1403 Performance Requirements > 1403.3 Vapor Retarder
1405.3.2 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 the class ...
NYC Building Code 2014 > 14 Exterior Walls > 1405 Installation of Wall Coverings > 1405.3 Vapor Retarders > 1405.3.2 Material Vapor Retarder Class
604.11 Duct Systems, Vapor Retarders
Where ducts used for cooling are externally insulated, the insulation shall be covered with a vapor retarder having a maximum permeance of 0.05 perm ...
NYC Mechanical Code 2008 > 6 Duct Systems > 604 Insulation > 604.11 Vapor Retarders
604.11 Duct Systems, Vapor Retarders
Where ducts used for cooling are externally insulated, the insulation shall be covered with a vapor retarder having a maximum permeance of 0.05 perm ...
NYC Mechanical Code 2014 > 6 Duct Systems > 604 Insulation > 604.11 Vapor Retarders
1203.3.2 Interior Environment, Exceptions
to be reduced to 1/1,500 of the under-floor area where the ground surface is treated with an approved vapor retarder material and the required openings ...
NYC Building Code 2008 > 12 Interior Environment > 1203 Ventilation > 1203.3 Under-Floor Ventilation > 1203.3.2 Exceptions
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