WHAT IS EXTERNAL WALL INSULATION?
External wall insulation boards are fixed to the outside of a property. The insulation boards are then generally rendered to give a protective and decorative finish to the exterior. The finish can be smooth, textured or painted, tiled, paneled, pebble-dashed or finished with brick slips to provide a real masonry brick finish. For even more information take a look at the energy saving trust website here.
WHAT ARE THE BENEFITS OF EXTERNAL WALL INSULATION?
Solid walls let twice as much heat escape as cavity walls. External wall insulation reduces the loss of heat substantially thus decreasing the amount of fuel used to heat your home. It also protects the exterior of your home by filling cracks and gaps, acts as weatherproofing and provides improved sound insulation.
Adhesives
Thermal Insulation
Mechanical Fixing
Reinforced layer – Base coat with glass fibre mesh embedded
Primer coat
Finishing coat and render
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If your home was built before 1930, its external walls are probably solid rather than cavity walls. Cavity walls are made of two layers with a small gap or ‘cavity’ between them. Solid walls have no gap, so they let more heat through.
Solid wall homes cost more to heat and are more prone to condensation damp than modern cavity wall built properties. When it comes to insulating your home, retro-fitting External Wall Insulation (EWI) is the most thermally efficient way of reducing heat loss in solid wall houses.
