There is a wide range of products on the market aimed at insulating your home against heat loss. We aim to cut through the technical jargon and give you an idea of the right board to use in the right situation. When insulating your home you need to think about the three basic areas - walls, roofs, floors & ceilings, floors. In this simple guide we will look at each of these areas in turn to find a suitable home insulation product and how to apply it.
In general the insulation is done internally if it is retrofitted, or within the brick courses if it is a new build. The main products for retrofitting insulation on walls are made by the three biggest suppliers Kingspan, Celotex and British Gypsum. These boards come in two varieties, those backed with plasterboard and those not.
These are foil backed on both sides and are by far and away the most popular selling. Celotex GA4000 range and Kingspan Tp10 range make these boards and they are to all intents indistinguishable from a thermal performance perspective. The new regulations have meant that greater and greater thickness are now required to achieve the required U value. For walls this is likely to be in the region of 70mm of insulation but this is very much dependent on the wall construction (i.e. brick or block cavity or non cavity).