Sustainability — Embodied carbon | Features

Material assessment: ground slab
Total embodied carbon emissions/m2 of slab area103.2
Concrete mix based on 30% PFA substitution of OPC
	Kg embodied carbon/unit	Kg embodied carbon/m2 gifa
Excavation (m3)/ PFA mix	11.1	6.66
Disposal (m3)	16.7	10.02
Blinding, 75mm thick (m3)	9	0.72
Concrete, 200 thick, OPC cement (m3)	309.1	61.82
Reinforcement, A252 mesh (kg)	0.44	1.72
Movement joints (m)	8.7	0.44
Damp proof membrane (m2)	0.7	0.7
Insulation board (m2)	1.7	1.7
Total embodied carbon emissions/m2 of slab area		83.8
Exclusions: demolition and disposal of slab construction at end of life

Building assessment: distribution centre
	£/m2 gifa	%	Kg embodied carbon/m2 gifa	%
Substructure	59	17.4	146.5	42.3
Frame, upper floors and stairs	60.7	17.9	68.4	19.7
Roof	48.5	14.3	41.6	12
External walls, windows and doors	14.7	4.3	13.3	3.8
Internal walls and doors	0.8	0.2	2.3	0.7
Internal finishes	4.4	1.3	5.6	1.6
Building services installation, including dock levellers	31.8	9.4	30.2	8.7
External works and services	81.4	24	38.6	11.1
Preliminaries	37.5	11.1
Total construction cost/m2 gifa	338.8	100
Total embodied carbon emissions/m2			346.5	100
Exclusions: site preparation, site abnormals, distribution centre and administration area fit-out, operating equipment, professional fees