The National Insulation Association represents the UK's home insulation industry. Having a well-insulated home will not only improve the comfort of the house, it also significantly reduces carbon emissions. Around 50 per ecent of heat lost in the average home is through uninsulated walls and loft spaces.

The National Insulation Association's leaflet, A Guide to Insulation, available on their website at http://www.nationalinsulationassociation.org.uk/ sets out the various insulation methods and how they are installed.