housing fit for a climate emergency: whole life...
TRANSCRIPT
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HOUSING FIT FOR A CLIMATE EMERGENCY: WHOLE LIFE CARBON
THINKINGEilidh ForsterTwitter: @eilidh_forster
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INTRODUCTION
Committee on climate change recommendations
Timber frame housing on new builds by 2025 How will increased timber demand be met?
Increased forest cover to 17% No clear plan, planting targets failing, no emphasis on commercial forestry
Important relationship
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OBJECTIVES
Potential role of wood in climate change mitigation –important relationship between forestry and construction
Impact of building materials selection on the environment
How to make informed design choices
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CARBON CAPTURE & STORAGE+
1. Harvesting ensures continued C capture
2. Store C long-term plus
3. Avoid emissions from concrete & steel
70% of stored carbon is in building materials
Avoided emissions doubles benefits
Recycling prolongs C storage and increases avoided emissions
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SUBSTITUTED MATERIALS = AVOIDED EMISSIONS
•Saving of 10,000 kg CO2 eq in typical semi-detached (20% of total embodied C footprint)
•For every kg of wood use you reduce the C footprint
•For every kg of concrete or steel avoided you reduce the C footprint
•Can we do more… cladding, windows, doorsBrick and block vs brick and timber frame
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TERMINOLOGY
1. Embedded CC stored in the material
2. Biogenic Cemissions that originate from biological sources, such as plants, trees and soil
3. Embodied Cemissions released during production of a material/product
4. Operational Cemissions released during the use of a product throughout its life
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MAKING INFORMED DESIGN CHOICES•Life cycle assessment (LCA)
•Early assessment ensures optimal design
•Affordable
•Achievable by non-experts (e.g. etoolLCD)
https://www.naturallywood.com/wood-design/life-cycle-assessment
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POWER TO MAKE CHANGE
Construction sector is one of biggest consumer of timber = influence forestry
Materials selection can make significant impact• 70% of stored carbon is in building materials • Avoided emissions double the benefits of timber
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THANK YOU
Eilidh Forster
Twitter: @eilidh_forster