Swisslab EWI chosen for South Greenfield Render Project

Swisslab external wall insulation (EWI) from Alumasc, has been used in the colourful refurbishment of a social housing scheme in Shettleston, Glasgow.


The South Greenfield Render Project is a £3.2million refurbishment programme implemented by Shettleston Housing Association to upgrade the insulation and improve the aesthetics of a scheme of 1960’s tenement flats. The new-look development is already gaining industry recognition and was recently a finalist in the AJ Retrofit Awards 2013.
Alumasc’s Swisslab EWI system is regularly used for regeneration projects as it eliminates cold bridging, condensation and mould growth and protects the structural fabric of the building with an effective life in excess of 30 years.  Existing properties are transformed in both their external appearance and thermal efficiency.

As a major element of the retrofit works, over 10,000m2 of Swisslab was installed. The overall combination of the insulation and external render has greatly improved thermal performance from the original U-Value of 1.36 w/m2k to an impressive 0.3 w/m2k.  Alumasc’s registered applicator at South Greenfield was Volker Laser Ltd and the main contractor was Cruden Building and Renewals Ltd.


The Swisslab system for this scheme was specified with 80mm EPS insulation on the majority of properties, however due to a past history of flooding, extruded polystyrene (XPS) insulation was used in the lower areas of the installation.  XPS is a closed cell insulation board, able to withstand wet and damp conditions, therefore minimising the risk of damage to the EWI system in the event of future flooding at the site.


The system was finished with Silkolitt, Alumasc’s high-performing silicone render, in 12 varying colours. John Gilbert of John Gilbert Architects in Glasgow, explains his vision for the colourful exterior:


“We felt that using colour brought life and interest to the tenements and, combined with the changes we made at each entrance, enhanced the experience of walking down the street. I think that people are now a lot happier having a front entrance to their homes that they feel is welcoming to visitors as well as themselves.”


Going on to talk about the Alumasc products used in the project, John said: “We specified Alumasc because the range of colour choices was good and the value of the product was sound. We have worked with Alumasc on projects spanning the last 20 years, and have no problem in using their products time and time again.”


Alumasc EWI systems are BBA approved, fully warranted and are available with a range of design and specification options, across many building types.

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