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Warrenhouse Case Study - Fabric and Further Retrofit

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20 Warrenhouse Road is a end terrestrial house that was badly fire damaged and unoccupied for over 15 years. The project was to refurbish the property and to incorporate the latest technologies to enable it to be energy self sufficient.

The energy self sufficiently was to be achieved through insulation, air permeability, solar energy and reuse/recycling energy using a NIBE heat pump system

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Warrenhouse Case Study - Fabric and Further Retrofit

  1. 1. 20 Warrenhouse Road Fabric and Further Retrofit J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  2. 2. Aim Develop a single property fabric and further approach to retrofit and climate change that can be applied to void properties in need of significant repair. Existing CO2 emission 152.63 kg/m2/year J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  3. 3. Project Outcomes It is anticipated that the completed project will display significant cost and carbon savings relating to the property heating requirements. This project will also explore further mitigation to climate change measures resulting in a reduced environmental impact Completed CO2 emission 15.47kg/m2/year J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  4. 4. Project Outcome Predicted annual energy costs of £458 J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  5. 5. Project Outcome Predicted annual energy costs of £458 Dwelling Emission Rate (DER) equivalent to Code for Sustainable Homes Level 4 J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  6. 6. Project Outcome Predicted annual energy costs of £458 Dwelling Emission Rate (DER) equivalent to Code for Sustainable Homes Level 4 Air Permeability score of 2.74m3/(h.m2) J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  7. 7. Project Outcome Predicted annual energy costs of £458 Dwelling Emission Rate (DER) equivalent to Code for Sustainable Homes Level 4 Air Permeability score of 2.74m3/(h.m2) Great new home for First Ark J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  8. 8. The Process J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  9. 9. Rebuilding Removed existing windows and doors Created new roof Formed internal walls & Intermediate floor Cleared overgrown site J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  10. 10. The Fabric 200mm Enhanced Polystyrene – 0.15W/m2K 150mm Icynene spray foam insulation with 600 PIR – 0.15W/m2K Double glazed windows Composite Door Air tightness score of 2.74 J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  11. 11. The Further Exhaust Air Heat Pump and Mechanical Ventilation System Under floor heating, no heat source to first floor 2kW peak PV array Voltage Optimisation Rainwater harvesting system J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  12. 12. Air Permeability Spray foam insulation with taped PIR DPM and Tyvek DuPont AirGuard Reflective lapped into British Gypsum Soundcoat Plus Parge Coat Tested at 4 stages m3/hr/m2@50Pa Water tight 60 1st fix 6.25 2nd fix 3.78 completion 2.74 J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  13. 13. m3/hr/m2@50Pa 64 32 16 Axis Title m3/hr/m2@50Pa 8 4 2 1 Water tight 1st fix 2nd fix completion J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  14. 14. The Result J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit
  15. 15. First Ark’s most energy efficient property… meeting the 2050 climate change targets J O H N M c C A L L A R C H I T E C T S20 Warrenhouse Road - Retrofit

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