The second option, traditionally adopted in many hospital wards, locates the toilets adjacent to the corridors and places the patient area closer to the façade.
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.Compared to a residential LETI 2020 (Band C) target building (A-C) with a total embodied carbon of 675 kgCO2/m2, that is equivalent to just 0.7% reduction in carbon..
Comparison of embodied carbon (A-C) between a baseline residential building based on LETI Band C and same building with Passivhaus characteristics.
The adoption of the above Passivhaus standard does not have a substantial impact on the embodied carbon compared to a standard residential building.Construction sites could be defined as locations where finished assets are built.
They can be messy, congested, dirty and chaotic places.But they don’t have to be.
If the construction process can be transformed into the streamlined and predictable assembly of pre-manufactured parts, combined with on-site construction processes that are carefully managed to add the maximum value, much greater productivity can result.. To give a slightly left-field example, consider a circus tent.Typically, these large structures are put up overnight by a small team of trained operatives.