Our Flashcards.pdf

Part L vol.1 (Domestic):
- Energy forecast required for new buildings over 1000m2
- 30% reduction in emissions
- Maximum U values: external walls (0.18), floor (0.13), roof (0.11)
- Maximum recommended SDS achievable figures: external walls (0.15), floor (0.12), roof (0.10)
- Air permeability: 8.0m3/hr @ 50 Pa or 1.57m3/hr @ 4 Pa
- Heating: Minimum SCoP 3.0, Max temp +55°C
- Cooling: Minimum SCoP 4.0
- Domestic Hot Water: Boiler efficiency 89.5%, DHW generation minimum SCoP of 2.0
- Waste Water Heat Recovery: Showers to have WWHR with at least 36% recovery efficiency
- Ventilation/heat recovery: MVHR S&E system, minimum heat recovery 73%
- Lighting efficacy: 75 Lamp lumens/circuit watt, 105 Lamp lumens/circuit watt
- PV: Allocatable in proportion to ground floor area

Part L vol.2 (Non-Domestic):
- 27% reduction in emissions
- New performance metrics: primary energy target, CO2 emission target, minimum standards for fabric and fixed building services
- Maximum U values: walls (0.26), floor (0.18), pitched roof (0.16), flat roof (0.18)
- Maximum recommended SDS achievable figures: walls (0.15), floor (0.15), pitched roof (0.12), flat roof (0.12)
- Air permeability: 8.0 m3/hr @ 50 Pa or 1.57 m3/hr @ 4 Pa
- Heating: Minimum SCoP 3.0, Max temp +55°C
- Cooling: Minimum SCoP 4.0
- Domestic Hot Water: Showers to have waste-water heat recovery, minimum SCoP of 2.0
- Ventilation/heat recovery: MVHR S&E system, minimum heat recovery 73%, summer by-pass and variable speed controller
- Lighting efficacy: 95 Lamp lumens/circuit watt (general), 120+ Lamp lumens/circuit watt (display)