Page 52 - Build 161

Building controls
Supporting alternative methods
BRANZ has a suite of web-based calculation tools and other resources that come in handy to support an alternative method proposed in a building consent application.
BY TREVOR PRINGLE, ANZIA, BRANZ PRINCIPAL WRITER
AT CONSENT STAGE, there is often a roadblock when it comes to having an alternative method consented. The two key steps for designers are to: ● clearly identify where an alternative method, whether a system,
detail or component, is proposed
● provide su cient relevant information showing that the proposed
alternative method will comply with the appropriate performance requirements of the Building Code.
Select the appropriate compliance path
The process to get a building consent is called a compliance path. The options are:
1. comparison with an Acceptable Solution
2. comparison to other documents
3. comparison with in-service history
4. expert opinion
5. comparison to a previously accepted Alternative Solution
6. CodeMark certi cation, provided the use is within the conditions
of the certi cation
7. MBIE determination 8. Veri cation Methods 9. Acceptable Solutions.
50 — August/September 2017 — Build 161
FEATURE SECTION