N1102.1.1

Section N1102.1.1 is titled 'Vapor retarder' and covers requirements for energy efficiency. The requirement for walls in the building thermal envelope to comply with another section of this code pertaining to vapor barriers is established. The purpose of this section is to clarify that walls in the building thermal envelope are intended to comply with another section of this code.

The model shows a partial building thermal envelope wall assembly which contains a vapor barrier.