Merthyr Valleys Homes External wall insulation, curtain wall system to stairwell glazing, triple glazed windows and replacement roof to a 12 storey block of flats in Merthyr Tydfil. Client Merthyr Valleys Homes Location Merthyr Tydfil Start Date May 2012 Value £1,200,000 Length 8 Months Work Type External Wall Insulation, Curtain Wall System, Windows, Roofing Number of Properties Type of Properties Twelve Storey Flats Insulation Type 110mm ECO Rock U Value Finish Applied Silicone Render, Rockpanel Chameleon Board