Advanced Architectural Stone (AAS – formerly Advanced Cast Stone) is a leading, and award winning, manufacturer of residential and commercial architectural stone products used by masons, architects, developers, general contractors and owners. AAS is certified by the Cast Stone Institute (CSI), and the Architectural Precast Association. This gives them the ability to offer high end architectural cast stone and architectural precast, in addition to their Glassfiber Reinforced Concrete (GFRC) and Glassfiber Reinforced Gypsum.