Originally developed to upgrade post-war social housing estates, external wall insulation (EWI) is still the ideal choice for the refurbishment of social housing today. The existing housing stock presents a multitude of design issues as a result of non-traditional construction methods, including concrete, steel and timber frames, and the range in size from single and two-storey units up to multi-storey blocks. However, the choice of EWI systems now available means that there is a solution to suit even the largest, most ‘hard to treat’ properties.
A Cost Effective Solution
EWI is generally the most effective and efficient way of improving the thermal performance of traditional concrete panel low and high rise tower blocks. It brings these buildings into line with current standards by reducing heat loss through the walls, cold bridging and the associated problems of condensation and damp. EWI can also transform the appearance of a property which, alongside other initiatives, can help to regenerate local communities. The result is an extended lifespan and increased value for the building and improved living conditions for its occupants.
Benefits of EWI
The benefits to landlords of installing EWI can be significant:
- Increased value of the property
- Reduced heating costs by up to as much as 40%
- Lower maintenance costs e.g. from reduced condensation and mould growth
- Improved tenant satisfaction which could reduce turnover and void times
- Enhanced reputation from providing good quality homes that are affordable to heat.
There are a variety of funding streams available to landlords, housing associations and local authorities for installing EWI. The Energy Company Obligation (ECO) supports the installation of EWI under Green Deal framework. Individual funding schemes vary in their aims, target markets and levels of financial support and further information can be found on the Funding page.