Foxlow, Marple : 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 | 11000 kWh/yr | 15900 kWh/yr | - |
|---|---|---|---|
| Natural gas use | 164000 kWh/yr | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | 671 kWh/m².yr | 123 kWh/m².yr | - |
|---|---|---|---|
| Annual CO₂ emissions | 125 kg CO₂/m².yr | 29 kg CO₂/m².yr | - |
| Annual space heat demand | 359 kWh/m².yr | 31.1 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 | 123 kWh/m².yr | - |
| Annual CO₂ emissions offset by renewable generation | 29 kg CO₂/m².yr | - |
Calculation and targets
| Whole house energy calculation method | PHPP |
|---|---|
| Other whole house calculation method | - |
| Energy target | AECB Retrofit |
| Other energy targets | - |
| Forecast heating load | 17.7 W/m² demand |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | 14.29m³/m².hr @ 50 Pascals |
|---|---|---|
| Final air permeability test | 05 January 2023 | 1.9m³/m².hr @ 50 Pascals |
Project description
| Stage | Occupied |
|---|---|
| Start date | 29 January 2021 |
| Occupation date | 01 January 2023 |
| Location | Marple Manchester England |
| Build type | Refurbishment |
| Building sector | Private Residential |
| Property type | Detached |
| Construction type | Stone |
| Other construction type | |
| Party wall construction | n/a |
| Floor area | 322 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |  AECB silver standard certified building |
Project Team
| Organisation | Progress in Practice / Ecospheric |
|---|---|
| Project lead person | Progress in Practice / Ecospheric |
| Landlord or Client | Louise & Richard Glover |
| Architect | Progress in Practice |
| Mechanical & electrical consultant | Ecospheric |
| Energy consultant | Ecospheric |
| Structural engineer | |
| Quantity surveyor | |
| Consultant | |
| Contractor | Ecovert |
Design strategies
| Planned occupancy | Two |
|---|---|
| Space heating strategy | Direct electric heating via MVHR post heating |
| Water heating strategy | Direct electric Mixergy Tank |
| Fuel strategy | Mains electricity |
| Renewable energy strategy | n/a |
| Passive Solar strategy | |
| Space cooling strategy | Daytime use of MVHR with window night purging during heat waves. |
| Daylighting strategy | Existing building so not much change. Small windows facing South have been increased in size where possible. |
| Ventilation strategy | MVHR with openable windows |
| Airtightness strategy | Passive purple in sub-floor void and roofspace. Parge coat on masonry with Lime plaster. |
| Strategy for minimising thermal bridges | |
| Modelling strategy | Whole house modelling was undertaken in PHPP |
| Insulation strategy | Woodfibre IWI. Open blow cellulose in attic. Woodfibre in suspended floor. |
| Other relevant retrofit strategies | |
| Contextual information |
Building services
| Occupancy | 2 |
|---|---|
| Space heating | Heated supply air terminals. Electric towel rails. 3 x wood burning stoves as back-up. |
| Hot water | Mixergy Smart hot water cylinder. Direct electric |
| Ventilation | Zehnder Comfoair Q600 |
| Controls | |
| Cooking | Electric induction hob and 2 x ovens |
| Lighting | LED |
| Appliances | |
| Renewable energy generation system | n/a |
| Strategy for minimising thermal bridges |
Building construction
| Storeys | 3 |
|---|---|
| Volume | 873m³ |
| Thermal fabric area | 872 m² |
| Roof description | |
| Roof U-value | 0.08 W/m² K |
| Walls description | |
| Walls U-value | 0.20 W/m² K |
| Party walls description | |
| Party walls U-value | 0.00 W/m² K |
| Floor description | |
| Floor U-value | 0.16 W/m² K |
| Glazed doors description | |
| Glazed doors U-value | 0.80 W/m² K uninstalled |
| Opaque doors description | |
| Opaque doors U-value | 0.80 W/m² K uninstalled |
| Windows description | |
| Windows U-value | 0.75 W/m² K - |
| Windows energy transmittance (G-value) | 0.54 % |
| Windows light transmittance | - |
| Rooflights description | n/a |
| Rooflights light transmittance | - |
| Rooflights U-value | - |