250XTFf (2-1/2" depth)

High Performance Thermal Aluminum Window System

Smart Design, Lasting Value

The Capitol 250XTFF has a 2-1/2" frame depth for tight wall profiles, retrofit applications, and space-conscious new construction. Its aluminum construction and polyamide thermal break are designed to help reduce heat transfer. See the performance tables for the tested configurations and results.

Give your building a fresh look and occupants a more
comfortable place to work, learn, or gather. The 250XTFF combines the strength of aluminum with a thermally divided design to deliver everyday durability, indoor comfort, and lasting value for your investment.

Key Features & Benefits

• Enhanced Comfort Options: Optimize your interior environment with surface mounted Capitol screens for natural airflow and integral blinds for seamless light management, privacy control, and acoustic buffering. 
• Boost Building Efficiency:  The polyamide thermal break is designed to help reduce heat transfer. Computer simulation shows U-factors as low as 0.26 for selected 250XTFF fixed window glazing and blind sash options. Results depend on the selected configuration.
• Tested Structural Performance:  The fixed and project-out configurations achieved Class AW-PG100 in the reviewed physical tests. See the performance summary for design pressure, air infiltration, and water penetration results.
• Commercial Grade Construction:
  Built with commercial-grade materials and reinforced corner construction. Follow Capitol’s care and maintenance instructions.

Technical Specifications

At Capitol Aluminum & Glass Corp., we are committed to delivering top-tier architectural products. The Capitol 250XTFF High Performance Thermal Aluminum Window System reflects our dedication to quality, performance, and client satisfaction, providing a reliable and energy-efficient solution for your commercial window needs.

For detailed specifications, project-specific inquiries, or to request a quote, please contact us directly. Call (419) 483-7050 to speak with Project Specialist.

Experience the Capitol difference

– a promise of reliability and long-term satisfaction.

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