Energy Saving Guidebook
Insulation Insulation acts as a barrier to heat flow, keeping winter warmth in and summer heat out, thereby reducing heating and cooling costs. Well insulated homes can: 1. Stay up to 10ºC cooler in summer and 5ºC warmer in winter 2. Save 45-55% of heating and cooling energy Insulation is essential to reduce heat loss in winter and to help keep your home cool in summer. Heat is lost through radiation, convection and conduction. There are two types of insulation – bulk and reflective. Bulk insulation reduces radiant, convective and conductive heat loss through millions of tiny air pockets that provide resistance to heat flow. Reflective insulation only reduces radiant heat transfer but can act as a vapour barrier as well.
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