External wall insulation reduces the risk of dampness and condensation, but it does not eliminate it.
The addition of external wall insulation will reduce the amount of heat that escapes from your home. This means you won’t need the heating on for as long, reducing your energy bill.
The exterior of the building is cleaned and repaired (if necessary), then insulation boards are attached to external walls using mechanical fixings. A reinforcing mesh is applied over the insulation and then render or cladding is applied to protect against the weather and create the desired finish.
With a warm wall, the dew point will move outwards towards the cooler external wall. This will help keep the house warm and reduce the risk of condensation appearing.
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