// CODE SNIPPET
1403.3 Vapor Retarder
JUMP TO FULL CODE CHAPTER
An approved vapor retarder shall be provided.
Exceptions:
- Where other approved means to avoid condensation and leakage of moisture are provided.
- 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 ...
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 ...
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 ...
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