Part H2 Damp and weatherproofing
NSW H2P3 Rising damp2019: NSW P2.2.3
- unhealthy or dangerous conditions, or loss of amenity for occupants; and
- undue dampness or deterioration of building elements.
NSW H2P3 does not apply to a Class 10 building where in the particular case there is no necessity for compliance.
The intent of requiring the barrier to have a high resistance to damage during construction is to increase the barrier’s ability to resist punctures during construction. By being less susceptible to puncturing, the barrier will provide increased protection against moisture containing dissolved salts from coming into contact with the concrete slab.