Insulation

• Insulation reduces the rate of energy transfer by heating
• Having thick walls that are made from a low thermal conductivity can prevent energy losses through heating
• The thicker the walls and the lower their thermal conductivity, the slower the rate of energy transfer will be (so the building will cool more slowly)
• Using thermal insulation can prevent energy losses through heating
• • T. Insulation - Some houses have cavity walls, made up of an inner and an outer wall with an air gap in the middle. The air gap reduces the amount of energy transferred by conduction through the walls
• T. Insulation - Cavity wall insulation, where the cavity wall air gap is filled with a foam, can also reduce energy transfer by convection in the wall cavity
• T. Insulation - Loft insulation can reduce convection currents being created in lofts
• T. Insulation - Double-glazed windows work in the same way as cavity walls. They have an air gap between 2 sheets of glass to prevent energy transfer by conduction through the windows
• T. Insulation - Draught excluders around doors and windows reduce energy transfers by convection