An exterior insulation wall (EWI) is a thermal-insulating, protective and attractive exterior covering made of expanded polystyrene, mineral wool, polyurethane foam or phenolic foam, with compressed cement dense that is mineral- covered. It can also be applied to solid walls and cavity walls with finishes and plaster.
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This type of insulation is the normal choice for properties with thick brick walls. If you’re not sure what the walls of your home are made from, an inspection will give you a better idea. A solid wall is often indicated by alternate exposed and unexposed bricks, along with a mixture of narrow and tall ends, is indicative of thick brick walls. For more information on Insulation Render, contact a site like www.apsltdbristol.co.uk/external-wall-insulation/
EWI can be used in thick cavity walls, provided the cavity is first filled with insulating material. This is to prevent heat loss from the property and ensure it meets energy efficiency requirements. Like interior insulation, EWI can significantly reduce your heating bills. It can also help reduce dampness and condensation on walls and around windows and doors. This is due to the reduced temperature difference which encourages moisture and condensation.
If it will change the look of your property you may need planning permission for this type of insulation, particularly if you live in a listed building or conservation area in which case it is recommended that you contact your local council from the outset and see if they agree or allow it.