National fabricator Listers now supplies the Sheerline Classic Window in a beaded option, allowing installers to supply windows unglazed while achieving ultra-low U-values. Featuring an innovative clip-in bead system, combined with the Thermlock® multi-chamber design, the Classic window delivers U-values as low as 1.1W/m2K when triple glazed, exceeding the Part L of the building regulations…
The Sheerline Classic beaded system is here
Posted by Listers on 04/08/2023
