Alumasc's Swistherm External Wall Insulation (EWI) system has provided a weathertight façade at George Hall Court in Swindon, an eight storey tower block comprising 30 flats managed by Swindon Borough Council.<br> <br> The building had an existing EWI system which no longer met Part L of the Building Regulations and therefore required a thermal upgrade. The solution was to overclad the building with 2,000m2 of the Alumasc Swistherm system utilising 30mm EPS insulation. The new system resulted in the scheme's energy efficiency being improved from a U-Value of 0.46 to 0.33. Importantly, the nature of the EWI system enabled residents at George Hall Court to remain in their homes for the duration of the refurbishment work. Swistherm is BBA accredited, fully warranted and ideally suited to properties that require thermal upgrading and aesthetic improvement, Alumasc says.