Old Dover Road : Project images
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Energy and fuel use
Measured data from renewable generation is not yet available.
Fuel use
| Pre-development | Forecast | Measured | |
| Electricity use | - | 74 kWh/yr | - |
|---|---|---|---|
| Natural gas use | - | 172 kWh/yr | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | - | 2 kWh/m².yr | - |
|---|---|---|---|
| Annual CO₂ emissions | - | - | - |
| Annual space heat demand | 139 kWh/m².yr | 30 kWh/m².yr | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| Renewables Technology | - | - |
| Other Renewables Tech | - | - |
| Electricity consumed by generation | - | - |
| Primary energy requirement offset by renewable generation | 2 kWh/m².yr | - |
| Annual CO₂ emissions offset by renewable generation | - | - |
Calculation and targets
| Whole house energy calculation method | PHPP |
|---|---|
| Other whole house calculation method | - |
| Energy target | AECB Silver |
| Other energy targets | - |
| Forecast heating load | 16 W/m² demand |
Airtightness
| Date | Result | |
| Pre-development air permeability test | 27 April 2015 | 7.94m³/m².hr @ 50 Pascals |
|---|---|---|
| Final air permeability test | 01 September 2016 | 1.79m³/m².hr @ 50 Pascals |
Project description
| Stage | Occupied |
|---|---|
| Start date | |
| Occupation date | |
| Location | Canterbury Kent England |
| Build type | Refurbishment |
| Building sector | Private Residential |
| Property type | Detached |
| Construction type | Masonry Cavity |
| Other construction type | |
| Party wall construction | |
| Floor area | 163.6 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |  AECB silver standard certified building |
Project Team
| Organisation | Conker Conservation Ltd |
|---|---|
| Project lead person | Paul Mallion |
| Landlord or Client | Joy and Nick Shaw |
| Architect | Conker Conservation Ltd |
| Mechanical & electrical consultant | Built Environment Technology Ltd |
| Energy consultant | Conker Conservation Ltd |
| Structural engineer | SCGreen Ltd |
| Quantity surveyor | |
| Consultant | |
| Contractor | Richard Walder Carpentry Developments Ltd |
Design strategies
| Planned occupancy | |
|---|---|
| Space heating strategy | |
| Water heating strategy | |
| Fuel strategy | |
| Renewable energy strategy | |
| Passive Solar strategy | |
| Space cooling strategy | |
| Daylighting strategy | |
| Ventilation strategy | |
| Airtightness strategy | |
| Strategy for minimising thermal bridges | |
| Modelling strategy | |
| Insulation strategy | |
| Other relevant retrofit strategies | |
| Contextual information |
Building services
| Occupancy | 2 persons plus guests |
|---|---|
| Space heating | Condensing gas boiler firing underfloor heating to ground floor, and heated towel rails to wet rooms. Radiators to new bedroom and study in new roof. |
| Hot water | Hot water cylinder with rigid foam insulation and metal jacket. |
| Ventilation | Vent Axia Sentinel Kinetic Plus B with inline frost unit, rigid PVC ductwork and attenuators. |
| Controls | 7 day programmer and thermostats to each area with underfloor heating. |
| Cooking | |
| Lighting | LED downlight |
| Appliances | |
| Renewable energy generation system | |
| Strategy for minimising thermal bridges | Insulated cornice used in rooms where existing roof retained. To perimeters of whole house external XPS insulation taken down from DPC to top of foundations. |
Building construction
| Storeys | 2 |
|---|---|
| Volume | 477m³ |
| Thermal fabric area | 53167 m² |
| Roof description | I joists 300mm deep fully insulated with recycled denim, overlaid with 52mm dense wood fibre boards. underlined with 11mm OSB. |
| Roof U-value | 0.13 W/m² K |
| Walls description | Existing block/block cavity walls with original 50mm injected mineral wool insulation, topped up and replaced where missing. Upgraded with 150mm graphite EPS external insulation system with acrylic render system. |
| Walls U-value | 0.15 W/m² K |
| Party walls description | |
| Party walls U-value | - |
| Floor description | Original floor of 150mm concrete slab with 50mm EPS insulation under screed. Upgraded with 50mm PIR foil faced insulation, and a dry screed/underfloor heating board. |
| Floor U-value | 0.27 W/m² K |
| Glazed doors description | Timber aluminium composite triple glazed |
| Glazed doors U-value | 0.87 W/m² K uninstalled |
| Opaque doors description | Insulated timber panels |
| Opaque doors U-value | 0.90 W/m² K uninstalled |
| Windows description | Timber aluminium composite triple glazed, outward opening with aluminium cills |
| Windows U-value | 0.87 W/m² K uninstalled |
| Windows energy transmittance (G-value) | 0.53 % |
| Windows light transmittance | - |
| Rooflights description | Triple glazed units in timber frame with insulated external aluminium cladding, and aluminium external solar blackout blinds |
| Rooflights light transmittance | 0.44% |
| Rooflights U-value | 0.92 W/m² K |