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Mid-rise Performance

If you are building a mid-rise structure in the Western United States, you are probably already specifying the Endurance Series by VPI Quality Windows.

In a world where demanding specifications and uncompromising jobsite testing is a way of life, The Endurance Series excels. Unlike many other window companies, VPI achieves superior product performance ratings in the lab and dependable performance in the field.

We diligently apply a consistent set of design and manufacturing principles to deliver industry-leading water intrusion resistance. Reinforcement of framing members and flexible panel functionality, eliminating window mulling significantly reduces potential water penetration pathways. Our manufacturing process is systematic, documented, controlled and constantly improving.

VPI offers the widest variety of operational styles, combinations and colors available anywhere.

With single, continuous frame configurations of up to 9 panels and 72 square feet, VPI has countless options available from which designers may choose.

We've also introduced our NEW Deep Backset Frame for the Endurance Series Windows. These are engineered for mid-rise and high-rise multi-family/mixed-use applications. For more information, click here or contact a VPI salesperson nearest you.

Deep Backset Frame Recessed Detail Comparison:

3.5 inch Deep Backset Frame Recessed Detail Comparison  6 inch Deep Backset Frame Recessed Detail Comparison


Example Configurations
Standard Features on all Configurations:
  • COMPRESSION-SEAL DESIGN enhances protection against water intrusion, air infiltration and allows ease of glass replacement
  • VINYL FRAMES increase thermal performance, add color options and reduce condensation
  • FRAME AND SASH have hollow compartments that allow for optimal reinforcement required in heavy commercial applications
  • FUSION WELDED CORNERS provide environmental comfort and protect against leaks
  • AVAILABLE MULTIPLE LOCKING POINTS ensure security and provide a triple weather seal for superior air and water resistance
  • EASY TO OPERATE HARDWARE delivers a wide opening for emergency egress and cleaning
  • T-BAR allows for freedom of design while maintaining structural and thermal performance