Wall insulation incorporated in cavity or over cladding to attain <0.2w/°C U value
Roof Insulation (and vapour barrier where appropriate) to attain <0.2w/°C U value
HIGH INSULATING VALUE LOW MAINTENANCE WINDOWS with insulating glazing with emmisivity of glass to suite orientation and solarization for best solar gain control. Opening lights with good seals and security locking.
EXTERNAL DOORS with insulating core and good draught seals and draught sealed letter box. PORCH to provide air lock preferable.
SEALING of all junctures in external envelope to prevent ventialtion heat losses.
Extracting air from wet foul air areas ˆ kitchen and bathrooms and distributing fresh warmed air to living, bedroom and circulation areas. Air to air heat recovery and particulate filtration system to maintain air quality.
AIR EXTRACTION SYSTEM with high extraction rate to force up ventilation rate to counter overheating inn summer or with high occupancy rate ˆ having a party. Manually controlled along with opening windows to allow higher rate of circulation.
SOLAR WATER HEATING SYSTEM and highly insulated hot water cylinder pumped circulation system which may be linked with PV power system.
PHOTOVOLATAIC ELECTRICAL POWER SYSTEM to provide a portion or all of the power needs for lighting, cooking and electrical equipment operation either linked to mains power supply with metered feed back of to electrical storage battery system with rectifier and operating controls.
ENERGY EFFICIENT LIGHTING, HEATING AND ELECTRICAL EQUIPMENT AND WHITEGOODS to the highest standard available and affordable.
CONTROL AND MONITORING SYSTEM to facilitate optimum operation of heat light and power systems both automatically and manually where appropriate.
COMBINED HEAT AND POWER SYSTEM FOR LARGER INSTALLATIONS OR GROUPS OF INSTALLATIONS SHARING HEAT AND POWER.
AIR CONDITIONING SYSTEMS AND THERMAL STORAGE IN SAY A SWIMMING POOL and WATER TREATMENT SYSTEMS may be considered for large scale developments.
MAINTENANCE of all systems to keep at peak working order and prevent damage or failure ˆ the permanent mechanical ventilation system in particular..