External Wall Insulation

External wall insulation is usually defined as a layer of insulation that's fixed to an existing wall. This layer will be finished either with a coat of render or with an alternative cladding to protect it from the elements.

This method is often required for insulating walls on solid wall properties where there's no option for cavity wall insulation; however, there are other situations where it's the appropriate course of action.

While adding insulation should feel like a no-brainer to improve the thermal efficiency of your home, no form of wall insulation, external wall insulation included, is without some form of challenge — often centred around how you home deals with moisture.