Trapped air between glass or mineral wool fibres reduces heat loss by conduction and convection. Walls 35 Cavity wall insulation fills the cavity between the outside walls with mineral wool ...

So, trapped air reduces heat loss by conduction and convection. Many insulating materials incorporate trapped air. There are several different ways to reduce heat loss: ...

With energy costs continuing to climb, now is the time to take action to reduce your bills by tackling the heat loss hotspots in your home. Ofgem, the energy regulator, has confirmed that the ...