External Wall Insulation (EWI), also referred to as Insulated Render, Solid Wall Insulation (SWI) and External Thermal Insulation Composite Systems (ETICS) and have been used in the UK for over six decades. The use of EWI systems has increased significantly in the last 10 - 15 years and they are suitable for both new build and refurbishment projects, but particularly beneficial for the aging housing stock we currently have in the UK. 

The UK have approximately 12 million homes that either have no insulation or insulation that only meets the standards of 1976 or before. These poor levels of insulation could be costing homes more than £1,000 per year if there are no improvements made to the thermal efficiency of the fabric of the building. 

EWI is typically a sandwich constructed system, applied externally to the substrate of the building, and provides a high level of thermal upgrade in addition to improving the internal climate and air tightness of the property. This makes EWI an excellent solution to the poor insulation of these homes, as well as providing a new fresh weather resistant appearance to the facades.