When it comes to making your home more energy efficient, insulation of external house walls is often a key part of the process. It can significantly reduce heat loss and save you money in one go. But how does it work?

The external house insulation material is attached to the outside of your wall in several layers. It consists of the main insulating layer which is normally made from expanded polystyrene, mineral wool or phenolic foam, and then a protective and decorative exterior cladding which can be rendered, wood or cement based.

It’s particularly suited to older properties with solid masonry walls and can help future proof them against tighter energy codes that may come in the future. It’s also more affordable than internal lining and will not cause you to lose floor space.

Elevate Your Building’s Performance with External Insulation Cladding: A Comprehensive Overview

You can install it around existing soffit vents and downpipes to prevent condensation and damp. It can also be used with rainwater systems. It can help regulate air flow within a building, reducing humidity and improving comfort. It can also help to prevent condensation and dampness within the wall structure itself by ensuring that moisture from outside runs away rather than getting trapped in the cavity where it could potentially promote the growth of mould.

It is a relatively low maintenance option, although you will need to regularly check the condition of the cladding. You will also need to consider how you will access and maintain services such as rainwater pipes, downpipes and electrics.