Hove Passivhaus : 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 | - | - | - |
|---|---|---|---|
| Natural gas use | - | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | - | - | - |
|---|---|---|---|
| Annual CO₂ emissions | - | - | - |
| Annual space heat demand | - | 14 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 | - | - |
| Annual CO₂ emissions offset by renewable generation | - | - |
Calculation and targets
| Whole house energy calculation method | PHPP |
|---|---|
| Other whole house calculation method | - |
| Energy target | PassivHaus |
| Other energy targets | - |
| Forecast heating load | 12 W/m² demand |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | - |
|---|---|---|
| Final air permeability test | - | 0.6m³/m².hr @ 50 Pascals |
Project description
| Stage | Occupied |
|---|---|
| Start date | 20 June 2016 |
| Occupation date | 01 December 2017 |
| Location | Hove East Sussex England |
| Build type | New build |
| Building sector | Private Residential |
| Property type | Detached |
| Construction type | Softwood frame |
| Other construction type | Render and timber cladding |
| Party wall construction | |
| Floor area | 454 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |
Project Team
| Organisation | |
|---|---|
| Project lead person | James Heath |
| Landlord or Client | James Heath |
| Architect | Jim Miller Design Ltd |
| Mechanical & electrical consultant | Naked Hosue |
| Energy consultant | Naked House |
| Structural engineer | J Turner & Associates Ltd |
| Quantity surveyor | Andrew Smith |
| Consultant | |
| Contractor | Coastal Building Services & Naked House |
Design strategies
| Planned occupancy | 4 |
|---|---|
| Space heating strategy | 11KW gas boiler10 Solar thermal panels with drain backLog burner 8KW to heat store and 2KW room,1500l heat store2 battery heaters to supply air6 towel radiators in bathrooms connected to heat |
| Water heating strategy | 300l cylinder inside heat store10 Solar thermal panels with drain back |
| Fuel strategy | Mains gas and electricity |
| Renewable energy strategy | Solar PV and solar thermal panels on roof |
| Passive Solar strategy | House orientated to south with large amounts of glazing |
| Space cooling strategy | Electric external roller blinds to southerly glazing |
| Daylighting strategy | |
| Ventilation strategy | Genvex, ECO 375 TS2 units located in lower ground floorworkshop and ground floor WCMax 420m3/hrDucting flow rates |
| Airtightness strategy | Tested at 0.6 ACH |
| Strategy for minimising thermal bridges | All thermal bridges minimised and accounted for in PHPP |
| Modelling strategy | PHPP |
| Insulation strategy | Insulated raft with timber frame construction over |
| Other relevant retrofit strategies | |
| Contextual information |
Building services
| Occupancy | |
|---|---|
| Space heating | |
| Hot water | |
| Ventilation | |
| Controls | |
| Cooking | |
| Lighting | |
| Appliances | |
| Renewable energy generation system | |
| Strategy for minimising thermal bridges |
Building construction
| Storeys | 4 |
|---|---|
| Volume | - |
| Thermal fabric area | - |
| Roof description | Timber flat roof:15mm plasterboard140mm service void45mm Isover between battens220 Isover between joists35mm Isover between battens |
| Roof U-value | 0.14 W/m² K |
| Walls description | Timber frame by EHI / Naked House Ltd25mm: plasterboard45mm Osover insulation between battens12mm Biospan board70mm Isover insulation195mm Isover insulation40mm Steico ProtectRain screen |
| Walls U-value | 0.12 W/m² K |
| Party walls description | NA |
| Party walls U-value | - |
| Floor description | Insulated concrete raft:175mm concrete240mm Isoquick |
| Floor U-value | 0.01 W/m² K |
| Glazed doors description | GreenstepsScandinavian SlimlineCOTO-62 |
| Glazed doors U-value | 0.77 W/m² K uninstalled |
| Opaque doors description | |
| Opaque doors U-value | - - |
| Windows description | Greensteps, Scandinvian Slimline Windows, COTO-62Timber aluminium |
| Windows U-value | 0.80 W/m² K - |
| Windows energy transmittance (G-value) | - |
| Windows light transmittance | - |
| Rooflights description | |
| Rooflights light transmittance | - |
| Rooflights U-value | - |