MEDIA RELEASE - Monday, August 15, 2011
Acceptable Solution for Weathertight Concrete Construction Added to NZ Building Code Documents
Building a home to take advantage of concrete's excellent weathertight credentials has become even simpler with a new
Acceptable Solution that references the Cement and Concrete Association of New Zealand (CCANZ)'s Code of Practice CCANZ
From August 2011 Clause E2 (External Moisture) of the New Zealand Building Code has an Acceptable Solution (E2/AS3) for
weathertight concrete and concrete masonry construction that references CCANZ's Code of Practice for Weathertight
Concrete and Concrete Masonry Construction.
The Code of Practice covers the weathertightness of the building envelope for concrete slabs on the ground, concrete
walls and associated methods of insulation, concrete flat roofs and decks, and concrete to timber construction
To aid planners and builders, the Code of Practice follows the same format as existing weathertightness solutions, but
offers larger detail drawings following the text.
CCANZ developed the Code of Practice in partnership with building and construction industry representatives, and its
acceptance into the New Zealand Building Code followed wider consultation by the Department of Building and Housing
CCANZ Chief Executive Rob Gaimster is delighted with the Code of Practice and said it will bring real benefits to
builders and home owners.
"The development of this document and its inclusion as an Acceptable Solution in the New Zealand Building Code will
alleviate the current uncertainty amongst consent authorities in the area of weathertight concrete and concrete masonry
design and construction.
"It will also allow builders, designers and their clients to choose from a wider range of building materials, and in
turn enable the weathertight advantages of concrete and concrete masonry systems to enhance New Zealand's building
For further information about this key change to the NZBC External Moisture documents, go to the Department of Building
and Housing website - www.dbh.govt.nz
To download [pdf 2.80 MB] or purchase a hardcopy of Code of Practice for Weathertight Concrete and Concrete Masonry
Construction (CP 01:2011), go to the CCANZ website - www.ccanz.org.nz