York, Pa., May 26, 2026

Graham Architectural Products, a specialist in high-performance window systems and part of the Oldcastle BuildingEnvelope portfolio of companies, including CRL and US Aluminum, today introduced the GT6300 Human Impact Window system, designed specifically for behavioral health and healthcare environments where patient protection and therapeutic design must work together. Building on Graham’s established human impact window platform, the GT6300 introduces integrated anti-ligature design and other engineered safety features directly into the window assembly - helping reduce risk in patient environments while preserving daylight and architectural continuity. 
 

Behavioral health facilities present unique design challenges. Window systems must safeguard patients while meeting strict regulatory requirements, yet still support daylight, visibility, and the calming environments widely recognized as important to therapeutic care. 
 

The GT6300 addresses these needs through an integrated system design that incorporates key safety elements directly into the window assembly. Its anti-ligature design with a concealed energy retention bar helps reduce risk by eliminating exposed hardware within patient environments. The system also incorporates a dedicated sash retention system engineered to keep glazing secured within the frame after repeated impacts, helping maintain system integrity under extreme conditions. Optional integrated blinds with maintenance-only access provide patient privacy while allowing facilities to maintain controlled operation and safety.
 

Suitable for both new construction and retrofit projects, the GT6300 combines these safety features with strong thermal performance and durable construction for efficient installation and long-term reliability in healthcare settings.