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Concerto
Ethelred tower blocks - low carbon refurbishment Challenges and successes
Jon Lissimore Environment Manager
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Council policy - promote sustainable design and construction
Design for energy efficiency -reducing C02 & fuel poverty
Promote use of environmentally friendly materials -reducing pollution and environmental damage
Require sustainable accredited timber -avoids deforestation / loss of biodiversity, etc
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Ethelred tower blocks• Ward, Brittany and
Elkington • Required major
improvements• Decent homes work
needed
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Ethelred’s problems
• Spalling concrete• Ineffective heating and ventilation • Generic heating and hot water
charge for residents but high energy costs for Lambeth as landlord
• Socio-economic study May 2009:– 53% of respondents suffered
condensation– 38% could not keep their homes
comfortably warm due to draughty windows.
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Funding
• Lambeth had prior experience of carbon reduction projects
• Positive track record on sustainability helped us secure additional funding– Government Office London £6.8m
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Sustainable design and construction
Holles house refurbishment- proven 50% energy use reduction via a range of sustainability measures
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Sustainable legal timber
Fairfax House – the first construction project in Britain to be independently certified by the Forest Stewardship Council for its use of sustainable timber.
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Boatemah Walk
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Before…
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After!
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Ethelred tower block refurbishment
• New double glazed windows• Insulated external cladding• 63KWp Solar PV• New Communal boilers• CHP plant (310KWe)• New wet radiators with room
thermostats and heating
programmers
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Green roofsSedum roofs • Promoting Biodiversity• Reducing storm water run- off• Improving air quality• Insulation / cooling benefits
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Challenges
• PV system output
• Cladding - delays
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Challenges
Working with residents in occupation
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Successes
• Significantly improved conditions for residents
• 80% CO2 reduction in landlords footprint
• Reduced energy costs for residents and Lambeth• Blocks renewed to give a minimum 30 years of further life
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The new look towers
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Thank you