The marketplace hosts its own configurator, making it possible to see how the price changes as design decisions are made, and then to procure the exact components needed.
Adding triple glazing instead of double glazing would increase carbon around 6 kgCO2/m2 over its lifetime.Adding a MVHR and ductwork would increase carbon by 6.5 kgCO2/m2.
Adding a heat pump would increase carbon by 3.5 kgCO2/m2.Adding insultation (rockwool) thickness in walls from 150mm to 250mm of rockwool would increase carbon by 3.6 kgCO2/m2.Adding insultation (rockwool) thickness in floor and ceiling from 190mm to 370mm of rockwool would increase carbon by 6 kgCO2/m2.
Reducing the boiler size from a 15kw electric boiler to a 3kw boiler would reduce carbon by 1.69 kgCO2/m2.Reducing the number of radiators from 10 to just one would reduce carbon by 10.7 kgCO2/m2.
Reducing the size of the photovoltaic array from 24 to 12 units would reduce carbon by 12 kgCO2/m2.
All the above items added up together would mean just a reduction of around 4.7 kgCO2/m2, mainly due to the simplification of the heating and photovoltaic systems.Build Efficiently: implement innovative construction strategies such as Modern methods of Construction (MMC) and use a DfMA approach to reduce waste onsite..
Offset: Any remaining carbon should be offset via recognised carbon offset schemes.Offsets used should be publicly disclosed.. An example of design strategies that follow the proposed embodied carbon hierarchy is shown in Figure 5..
Step-by-step hierarchy for net zero embodied carbon.Design for Manufacture and Assembly (DfMA).