Project name Fulford Passivhaus, York Project summary New-build singe-family detached house for individual clients. Certified as Passivhaus Plus.

Transcription

1 Project name Fulford Passivhaus, York Project summary New-build singe-family detached house for individual clients. Certified as Passivhaus Plus. Project Description Projected build start date 01 May 2014 Projected date of occupation 09 Feb 2015 Project stage Occupied Project location York, North Yorkshire, England Energy target PassivHaus Build type New build Building sector Private Residential Property type Detached Existing external wall construction Softwood frame Existing external wall additional information External leaf of render on blockwork. Existing party wall construction Floor area m² Page 1

2 Floor area calculation method Building certification PHPP Passivhaus certified Project team Organisation Project lead Client Architect Mechanical & electrical consultant(s) Energy consultant(s) Structural engineer Quantity surveyor Other consultant Contractor Karin de Vries and Rob Aitken Phil Bixby, Constructive Individuals Stuart Agars, Struct Sure Brian Stace, Hazelhurst CCS Transcore Ltd / Direct Labour Design strategies Planned occupancy Space heating strategy Water heating strategy Fuel strategy Renewable energy generation strategy Passive solar strategy Space cooling strategy Daylighting strategy Ventilation strategy Airtightness strategy Strategy for minimising thermal bridges Modelling strategy Family with children All-electric hating via supply air and heaters to bathrooms / shower rooms (towel rails). Additional electric panel heater to Living Room. DHW cylinder with multiple immersion heaters linked to PVs and intelligent controller. All electric 9.8kWp photovoltaic array, linked to Immersun controller and to the grid. Glazing to outh elevation with shading (projecting eaves and brise-soleil) to prevent overheating. N/A Good daylighting levels to all rooms. MVHR Use of Proclima airtightness products throughout. Timber frame has internal service void to protect airtightness membrane. Construction junctions designed using Psitherm software for analysis. Modelling generally using PHPP, sunlight modelling using Artlantis, Thermal bridge modelling using Psitherm. Page 2

3 Insulation strategy Other relevant retrofit strategies Other information (constraints or opportunities influencing project design or outcomes) 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. Energy use Fuel use by type (kwh/yr) Fuel previous forecast measured Electri c Gas Oil LPG Wood 2202 Primary energy requirement & CO2 emissions Annual CO2 emissions (kg CO2/m².yr) Primary energy requirement (kwh/m².yr) previous forecast measured Renewable energy (kwh/yr) Renewables technology forecast measured Poly-Si PV panels Energy consumed by generation Airtightness ( 50 Pascals ) Date of test Pre-development airtightness - - Test result Final airtightness 09 Oct Annual space heat demand ( kwh/m².yr ) Space heat demand Pre-development forecast measured Whole house energy calculation method Other energy calculation method Predicted heating load PHPP 10 W/m² (demand) Page 3

4 Other energy target(s) Building services Occupancy Space heating Hot water Ventilation Controls Cooking Lighting Appliances Renewables Strategy for minimising thermal bridges Family with children As designed - 1kW post-heater on input air, plus heated towel rails to bathrooms and one electric panel heater to Living Room DHW cylinder heated by immersion heaters, including PV via Immersun diverter. MVHR system (Brink) By MVHR supplier. Induction Hob. LED throughout. Building construction Storeys Volume 534m³ Thermal fabric area 50215m² Roof description Roof U-value Walls description Walls U-value Party walls description Party walls U-value Floor description Floor U-value Glazed doors description Glazed doors U-value Opaque doors description Opaque doors U-value 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. 0.08W/m² K 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. 0.13W/m² K 100mm polished concrete slab on 300mm Jablite expanded polystyrene on blinding and hardcore. 0.12W/m² K 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). 0.75W/m² K installed Page 4

5 Windows description Windows U-value Windows energy transmittance (G-value) Windows light transmittance Rooflights description Rooflights light transmittance Rooflights U-value 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). 0.75W/m² K installed 0.5% Fakro FTT-U6 0.67W/m² K installed Page 5

6 Project images Page 6