Fulford Passivhaus, York
Download
as PDF New-build singe-family detached house for individual clients. Certified as Passivhaus Plus.
Fulford Passivhaus, York : Project images
Click on image to preview full size
Energy and fuel use
Measured data from renewable generation is not yet available.
Fuel use
| Pre-development | Forecast | Measured | |
| Electricity use | - | 2202 kWh/yr | - |
|---|---|---|---|
| Natural gas use | - | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | - | 30 kWh/m².yr | - |
|---|---|---|---|
| Annual CO₂ emissions | - | 7 kg CO₂/m².yr | - |
| Annual space heat demand | - | 14 kWh/m².yr | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| Poly-Si PV panels | 8468 kWh/yr | - |
| Other Renewables Tech | - | - |
| Electricity consumed by generation | - | - |
| Primary energy requirement offset by renewable generation | -84 kWh/m².yr | - |
| Annual CO₂ emissions offset by renewable generation | -20 kg CO₂/m².yr | - |
Calculation and targets
| Whole house energy calculation method | PHPP |
|---|---|
| Other whole house calculation method | - |
| Energy target | PassivHaus |
| Other energy targets | - |
| Forecast heating load | 10 W/m² demand |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | - |
|---|---|---|
| Final air permeability test | 09 October 2015 | 0.55m³/m².hr @ 50 Pascals |
Project description
| Stage | Occupied |
|---|---|
| Start date | 01 May 2014 |
| Occupation date | 09 February 2015 |
| Location | York North Yorkshire England |
| Build type | New build |
| Building sector | Private Residential |
| Property type | Detached |
| Construction type | Softwood frame |
| Other construction type | External leaf of render on blockwork. |
| Party wall construction | |
| Floor area | 185.9 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |  Passivhaus certified building |
Project Team
| Organisation | |
|---|---|
| Project lead person | |
| Landlord or Client | Karin de Vries and Rob Aitken |
| Architect | Phil Bixby, Constructive Individuals |
| Mechanical & electrical consultant | |
| Energy consultant | |
| Structural engineer | Stuart Agars, Struct Sure |
| Quantity surveyor | Brian Stace, Hazelhurst CCS |
| Consultant | |
| Contractor | Transcore Ltd / Direct Labour |
Design strategies
| Planned occupancy | Family with children |
|---|---|
| Space heating strategy | All-electric hating via supply air and heaters to bathrooms / shower rooms (towel rails). Additional electric panel heater to Living Room. |
| Water heating strategy | DHW cylinder with multiple immersion heaters linked to PVs and intelligent controller. |
| Fuel strategy | All electric |
| Renewable energy strategy | 9.8kWp photovoltaic array, linked to Immersun controller and to the grid. |
| Passive Solar strategy | Glazing to outh elevation with shading (projecting eaves and brise-soleil) to prevent overheating. |
| Space cooling strategy | N/A |
| Daylighting strategy | Good daylighting levels to all rooms. |
| Ventilation strategy | MVHR |
| Airtightness strategy | Use of Proclima airtightness products throughout. Timber frame has internal service void to protect airtightness membrane. |
| Strategy for minimising thermal bridges | Construction junctions designed using Psitherm software for analysis. |
| Modelling strategy | Modelling generally using PHPP, sunlight modelling using Artlantis, Thermal bridge modelling using Psitherm. |
| Insulation strategy | Multiple layers to minimise thermal bridging through any one layer - PU board internally, mineral wool full-filing to timber frame, Rockwool part cavity fill to outside of frame. |
| Other relevant retrofit strategies | |
| Contextual information |
Building services
| Occupancy | Family with children |
|---|---|
| Space heating | As designed - 1kW post-heater on input air, plus heated towel rails to bathrooms and one electric panel heater to Living Room |
| Hot water | DHW cylinder heated by immersion heaters, including PV via Immersun diverter. |
| Ventilation | MVHR system (Brink) |
| Controls | By MVHR supplier. |
| Cooking | Induction Hob. |
| Lighting | LED throughout. |
| Appliances | |
| Renewable energy generation system | |
| Strategy for minimising thermal bridges |
Building construction
| Storeys | |
|---|---|
| Volume | 534m³ |
| Thermal fabric area | 50215 m² |
| Roof description | Pitched roof - tiles on battens on counterbattens on OSB on 300mm I-Joists fully-filled with mineral wool on 2 layers PU Insulation total 100mm above service void above plasterboard and skim. |
| Roof U-value | 0.08 W/m² K |
| Walls description | Render on lightweight blockwork outside of 50mm cavity and 50mm Rockwool TB batts, outside of 140mm timber frame with full-fill of mineral wool lined with 25mm PU insulation, service void and plasterboard and skim. |
| Walls U-value | 0.13 W/m² K |
| Party walls description | |
| Party walls U-value | - |
| Floor description | 100mm polished concrete slab on 300mm Jablite expanded polystyrene on blinding and hardcore. |
| Floor U-value | 0.12 W/m² K |
| Glazed doors description | Internorm windows and doors, type HF310 with triple-glazed units (triple 48mm coated clear glass 4b/18Ar/4/18Ar/b4 (3N2), Ug value: 0,50 W/mK and dB value: 34). |
| Glazed doors U-value | 0.75 W/m² K installed |
| Opaque doors description | |
| Opaque doors U-value | - - |
| Windows description | Internorm windows and doors, type HF310 with triple-glazed units (triple 48mm coated clear glass 4b/18Ar/4/18Ar/b4 (3N2), Ug value: 0,50 W/mK and dB value: 34). |
| Windows U-value | 0.75 W/m² K installed |
| Windows energy transmittance (G-value) | 0.5 % |
| Windows light transmittance | - |
| Rooflights description | Fakro FTT-U6 |
| Rooflights light transmittance | - |
| Rooflights U-value | 0.67 W/m² K |