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AS105.6.2 Vapor Retarders

Los Angeles Residential Code > S Strawbale Construction > AS105 Strawbale Walls—General > AS105.6 Moisture Control > AS105.6.2 Vapor Retarders
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Wall finishes shall have an equivalent vapor permeance rating of a Class III vapor retarder on the interior side of exterior strawbale walls in Climate Zones 14 and 16, as referenced in the California Energy Code. Bales in walls enclosing showers or steam rooms shall be protected on the interior side by a Class I or Class II vapor retarder.

Related Code Sections


1405.3 Exterior Walls, Vapor Retarders
Vapor retarders as described in Section 1405.3.3 shall be provided in accordance with Sections 1405.3.1 and 1405.3.2, or an approved design using ...
Los Angeles Building Code > 14 Exterior Walls > 1405 Installation of Wall Coverings > 1405.3 Vapor Retarders
AS104.3 Strawbale Construction, Vapor Retarders
Class I and II vapor retarders shall not be used on a strawbale wall, nor shall any other material be used that has a vapor permeance rating of less ...
Los Angeles Residential Code > S Strawbale Construction > AS104 Finishes > AS104.3 Vapor Retarders
AS105.6.2 Strawbale Construction, Vapor Retarders
Wall finishes shall have an equivalent vapor permeance rating of a Class III vapor retarder on the interior side of exterior strawbale walls ...
Los Angeles Residential Code > S Strawbale Construction > AS105 Strawbale Walls—General > AS105.6 Moisture Control > AS105.6.2 Vapor Retarders
R702.7 Wall Covering, Vapor Retarders
Class I or II vapor retarders are required on the interior side of frame walls in Climate Zones 14 and 16. See the California Energy Code, Figure ...
Los Angeles Residential Code > 7 Wall Covering > R702 Interior Covering > R702.7 Vapor Retarders
1405.3.3 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 ...
Los Angeles Building Code > 14 Exterior Walls > 1405 Installation of Wall Coverings > 1405.3 Vapor Retarders > 1405.3.3 Material Vapor Retarder Class
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