Beyond Passivhaus: the search for an embodied carbon standard
The Passivhaus standard, with its stringent and demanding requirements of air tightness, mechanical ventilation and heat recovery, is just about as good as it gets when it comes to delivering high-comfort, low-energy buildings. But it pays no attention to embodied carbon. A highly successful and certifiable Passivhaus building can be made entirely from concrete – and it can be expensive, if the architecture is not attuned to Passivhaus principles from the very start. Do we need a separate building standard to set embodied carbon targets, or can we add them to Passivhaus? And how much more regulation does the industry need?