Window Wall: 2-1/2" Thermally Improved - 2-1/2" x 4" & 2-1/2" x 6"

Oldcastle Glass is now Oldcastle BuildingEnvelope. We are the leading supplier of Building Envelope solutions, including architectural glass and the following aluminum glazing systems: custom-engineered curtain wall and window wall, architectural windows, storefronts, entrance doors and skylights. Our products include Oldcastle Glass StormGlass Hurricane Resistant Glass, Oldcastle Glass SunGlass, Solar Control, Low-E glass, Oldcastle Glass ArmorProtect, Oldcastle Glass ArmorResist line of safety glass, security glass, Blast-Resistant glazing, Oldcastle Glass Montage Visual Effects Glass and Oldcastle Glass Stackwall structural glass. Add to that, insulating glass units, heat-treated glass, laminated glass, fire-rated glass, and more. And in addition to the most comprehensive collection of architectural glass, Oldcastle Glass also engineers and manufactures curtain wall and window wall systems, architectural windows including operable windows and fixed windows, glass entrance doors and storefronts.