The following design measures will assist in improving the energy efficiency of new dwellings:
Draught lobbies
High levels of thermal insulation
High performance windows and external doors
High efficiency (condensing) boilers with a seasonal efficiency of at least 90%
Good space heating regulation controls with emphasis on programmable time and temperature control
Space heating zone control
South facing passive solar heat gain
Increased natural daylight to reduce lighting demand
Reduced North-facing glazing
Energy efficient lighting
Balanced mechanical ventilation with heat recovery
Draught sealing
Omission of conventional chimneys but encouraging the use of balanced flues and independent combustion air supply.
Renewable energy technologies.
Attention to building details.
Reducing thermal/cold bridges.
Airtight construction.
