Issue 50 – June 2013
ALF 3.2 is designed solely for calculating the thermal performance of stand-alone houses. It is not suitable for calculating the thermal performance of apartments or multi-unit housing. Where the thermal performance of an apartment complex, multi-unit housing, or larger buildings is required, the options given in H1/AS1 are to use the schedule, calculation, or modelling methods in NZS 4218:2009 Thermal insulation – Housing and small buildings or NZS 4243.1:2007 Energy efficiency – Large buildings – Building thermal envelope for commercial buildings that have more than 300 m2 of ground floor area.
Summarised from BRANZ Guideline, May 2013.