Kingspan/Potton has created a two and a half storey family house. This house has achieved Code level 6, but is available from Code level 3.
- Level 3 house of 1,000 sq ft £75,000
- Level 4 house of 1,000 sq ft £130,000
- Level 6 house of 1,000 sq ft £180,000
- Cost of solar panels (PV for electricity) £25,000
- Cost of solar hot water £3,000
- Cost of wood-burning boiler £5,000
- Total incremental cost of renewables £33,000
- Other costs to get from Level 4 to Level 6 £17,000
- Walls, roof, floor U-values: 0.11 W/m²K - TEK® Building System, 284 mm thick.
- Windows: 0.7 W/m²K (incl. wooden frame), triple glazed, gas filled.
- Air permeability: 1m³/h/m² at 50Pa.
- Thermal bridging: 4.5% of surface area.
- Mechanical ventilation: 88% heat recovery - Kingspan KAR MVHR.
- Specific fan power: 0.92W/l/s.
- Lighting: 100% compact fluorescents.
- Energy labelled A++ white goods.
- External lights on PIR sensors.
- Cycle storage.
- 4.7kW, 46m² of photovoltaics.
- 10 kW automatic wood pellet boiler – only 2kW needed.
- Wood pellet store, filled 2/3 times a year.
- 4m² solar hot water to reduce wood pellet resources used in summer.
- Walls and roof – TEK® Building System
- Cladding – sweet chestnut
- Timber portal structure
- Paved surfaces from recycled or sustainable sources
- Construction – recycled, reused
- Household – bin compartments
- Timber frame
- Floating ground floor, replacing concrete slab
- Wool carpet
- Natural rubber flooring
- Low water shower 8 litres/min and taps
- Dual flush WC, 4/2 litres, 160 litre bath
- Water labelled A++ washing white goods
- Greywater recycling for WC flushing
- Rainwater harvesting for washing machine and irrigation
- Improved biodiversity through native planting and creation of surface water
- Bio-filtration through surface water management – swales
- Home user guide
- Construction Site Impacts
Page last updated: 12 May 2010