Embodied Carbon - A constructive perspective, John Davies
Transcript of Embodied Carbon - A constructive perspective, John Davies
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Embodied Carbon A construction perspective
John Davies – Sustainability Associate
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Davis Langdon, An AECOM Company
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Davis Langdon, An AECOM Company
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Davis Langdon, An AECOM Company
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Thank You Measurement
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How do you measure embodied carbon in buildings?
X =
Mass of material Carbon emissions
per kg of material
Carbon footprint
of a material
2.5 kg
concrete
0.134 kg CO2
per kg concrete 0.335 kg CO2
The basic concept!
Simple Right?
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How do you measure embodied carbon in buildings?
Well, not quite…
Component
1
Component
2
Component
3
Component
4
Mass
Mass
Mass
Mass
Carbon/
kg
Carbon/
kg
Carbon/
kg
Carbon/
kg
Cost plan
item
Carbon
Item
Buildings can have over 30 main elements each comprised
of potentially 100’s of components
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How do you measure embodied carbon in buildings?
A simple example
Holorib
Lightweight
Concrete
Mesh
Reinforcement
Shear Studs
Mass
/m2
Mass
/m3
Mass
/m2
Mass
/nr
Carbon/
kg
Carbon/
kg
Carbon/
kg
Carbon/
kg
Composite
Upper
Floor
Carbon
/m2
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How do you measure embodied carbon in buildings?
The Leadenhall Building
Then the ‘sum of the parts’ is then
rapped up to a whole building level –
but you need to know how they all fit
together!!
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Thank You The Legislative Push
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Legislation
2016 Zero
Carbon
Homes
2019 Zero
Carbon
Non-dom?
Embodied
carbon in
Part L? Green
Book?
What’s on the horizon?
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Thank You Market Response
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Some of the people who are looking at this also…
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Fit with GRI Reporting
Reporting window
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In conclusion
• Its expanding the carbon discussion…
• Not well understood by all yet…
• Will start to refocus design and quantification energies…
• Might start to generate a design shift…
• Will set a more holistic mindset for assets…
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Thank You Any questions?