New weathertightness requirements effective

Effective date and transition arrangements

 The transition period for changes to the Weathertightness Acceptable Solution for Clause E2 External Moisture of the Building Code, E2/AS1, also known as the 'Weathertightness Solution', is over. Announced in June 2004, the changes became effective on 1 July 2005.

For those applying for a building consent on or after this date, the changes may affect their project. The Department advises them to talk to their designer or architect to make sure the new weathertightness practices have been considered before a building consent application is filed.

With the introduction of the Building Act 2004, code compliance certificates are based on the consent documentation or, if the consent was issued prior to 31 March 2005, on the Building Code as it applied at the time the consent was issued. Accordingly, the previous version of E2/AS1 remains relevant for those situations where building consents were issued based on its provisions.