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.