1 / 18

Showcasing refurbishment: Sheffield Eco-terrace

Showcasing refurbishment: Sheffield Eco-terrace. Mat Colmer Head of Housing & Supply Chain. The headline challenge. Home energy use is responsible for over a quarter of UK carbon dioxide (CO 2 ) emissions which contribute to climate change.

sol
Download Presentation

Showcasing refurbishment: Sheffield Eco-terrace

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Showcasing refurbishment: Sheffield Eco-terrace Mat Colmer Head of Housing & Supply Chain

  2. The headline challenge Home energy use is responsible for over a quarter of UK carbon dioxide (CO2) emissions which contribute to climate change Ultimately, by 2050 all dwellings will need to achieve an energy performance rating in the range of a high EPC band B to band A if we are to reach our target of a 80% cut in CO2 emissions across the entire housing stock

  3. Twice the terrace The ultimate large family home and a viable solution to overcrowding Background to the refurbishment competition Shillam + Smith Architecture & Urbanism

  4. 21stC terrace Open plan living and working for a young urban couple Background to the refurbishment competition Letts Wheeler Architecture & Design Ltd.

  5. 83 Robey Street, Sheffield Ash Sakula Architects

  6. ~10% of all existing dwellings are solid walled mid terraced properties Existing property and its energy performance

  7. SAP2005 39 EPC band E Total CO2 emissions 7.2 t/yr

  8. 7,500 CO2 emissions as existing 5,000 CO2 emissions(kg/yr) 2,500 0 Domestic hot water Lights, pumps & fans Cooking & appliances Central heating Total 1,190 4,801 797 390 7,178 Pre-refurbishment figures

  9. Airtightness testing and infrared thermography

  10. Thermal bridging details • 37 non repeating thermal bridge junctions • extensive modelling of 112 existing and improved junction variants • Existing dwellings do not have significant thermal bridging • y = 0.028 W/m2K pre-refurbishment • Detailing at Eco-terrace has maintained a good level of thermal bridging • y = 0.043 W/m2K post -refurbishment • provided an existing dwelling with the equivalent of the Enhanced Construction Details (y = 0.040 W/m2K) • Investigation has significant learning for industry, and may bring in more locations for inclusion in SAP revisions

  11. 24 Month project duration 7 Month build time Completion – October 2009

  12. SAP2005 92 EPC band A Total CO2 emissions <1.7 t/yr

  13. Post-refurbishment figures 2,000 CO2 emissions as refurbished 1,000 CO2 emissions(kg/yr) 0 -500 Central heating Domestic hot water Lights, pumps & fans Cooking & appliances Offset from PV Total 450 301 324 1,001 -378 1,697

  14. The overall cost of the Eco-terrace is in the region of £150,000 This represents a 76% Material costs for energy efficiency measures £45,000 reduction in CO2 emissions Now it is an eco-terrace

  15. Tool-box talk • Training links each job and contractor to overall energy performance of property • all trades can impact a refurbishment, from the first one in to the last • every job can impact on the performance achieved by the previous trades • high levels of energy efficiency requires the highest standards of workmanship • Contractor noted that the approach to working did change favourably in the other dwellings which formed part of the overall refurbishment scheme in Page Hall

  16. Lessons learnt • Energy Saving Trust: • Flexibility in terms of timeline • One size does not fit all • Performance assessment must include both regulated and non-regulated emissions • Engagement and training for all on-site trades • where any CO2 savings are missed the burden is passed to other dwellings • Clear lines of communication with project teams • Involvement of the local community and local representatives

  17. Next steps….

  18. www.energysavingtrust.org.uk/housing

More Related