embodied carbon - a constructive perspective, john davies
TRANSCRIPT
Embodied Carbon A construction perspective
John Davies – Sustainability Associate
Davis Langdon, An AECOM Company
Davis Langdon, An AECOM Company
Davis Langdon, An AECOM Company
Thank You Measurement
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?
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
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
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!!
Thank You The Legislative Push
Legislation
2016 Zero
Carbon
Homes
2019 Zero
Carbon
Non-dom?
Embodied
carbon in
Part L? Green
Book?
What’s on the horizon?
Thank You Market Response
Some of the people who are looking at this also…
Fit with GRI Reporting
Reporting window
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…
Thank You Any questions?