Impact of NCC2022

NCC2022 is still a long way from becoming mandatory in WA - but we have started to look at the impact of shifting to seven star minimums, and the introduction (in WA) of heating and cooling load limits.

Many are aware that when transition periods end, dwellings will need to achieve seven stars in NatHERS software, up from the current six star rating - but did you know that the "stars" under NCC19 and NCC22 will be different? There are different weather files, adjusted star bands and different rules for how assessors must model.

We have had a look at the impact of these changes for ten houses across nine climate zones and two NCC versions - a total of 180 simulations run. Have a look at our facebook page to see the results for each climate zone we tested
https://www.facebook.com/the.study.australia