In this piece
, Peter O’Leary, WSP Head of Structures, says cross-laminated timber offers a legitimate alternative to concrete and can result in decreased construction time. This is reinforced (hah!) by modelling done by Naylor Love
showing that an engineered timber structure can produce 90% less CO2 emissions than a traditional steel/concrete equivalent.
What will this look like? Well, in the Zero Carbon Road Map for Aotearoa’s Buildings
, the New Zealand Green Building Council (NZGBC) is calling on government to commit to a number of initiatives. These include:
A 10-year timeframe to ensure all new buildings are zero energy under the Building Code by 2030.
Require energy-efficiency labelling on existing buildings
Ensuring that the Ministry of Health, Ministry of Education, New Zealand Defence Force and Department of Corrections lead an all-of-government shift to verify their new buildings as sustainable and having lower embodied carbon from June 2020.
There are already some stunning examples of change in approach, much of it driven by local government. Auckland Council’s urban regeneration organisation, Panuku Development, has been awarded Green Star Community ratings for programmes in Henderson and Takapuna
– a first in New Zealand. Queenstown Lakes District Council is replacing a landmark building in the Upper Clutha with one of the country’s first community facilities built and certified to Passive House standard.