WAUSAU, Wis. - Kolbe presents a new window and door product line for commercial buildings – Kolbe 4500 Series. Ideally suited for hospitality, multi-family and mixed-use projects, the Kolbe 4500 Series includes fixed and tilt-turn windows, tilt & slide doors and outswing hinged doors. These steel-reinforced uPVC products are designed to meet commercial buildings' requirements for enhanced energy efficiency, occupant safety, low-maintenance and longevity.

"The energy performance of the Kolbe 4500 Series is simply outstanding. The new products meet many of the same structural performance values that aluminum systems provide, yet far exceed aluminum on thermal performance," says Mark Harger, general manager of Kolbe's Manawa location. "The results of using these products in commercial buildings can be seen in lesser HVAC loads and lowered heating/cooling costs, compared to traditional commercial aluminum products. Polymer-based frames limit condensation, reducing risk of water damage to commercial interiors."

Kolbe 4500 Series windows and doors are introduced in two frame styles: North American 3-1/4-inch frame with nailing fins and European 2-3/8-inch frame. Dual overlapping neoprene gaskets provide a tight seal against air and water infiltration. One-inch insulated glass is standard, and 1-3/8-inch triple pane insulated glass is available, which allows fixed windows to achieve U-values as low as 0.17. Window units with laminated glazing options attain sound transmission class (STC) ratings as high as 39.

In addition to high thermal and acoustic performance, Kolbe 4500 Series products may be specified for buildings with blast mitigation needs and those in high wind zones and coastal areas. Fusion-welded corners enhance structural strength and offer a clean finish. Locking points for extra security are added to the interior of the windows and hidden from view. Optional custodial locks, thermally broken doorsills, screens and extension jambs are offered, as are a variety of mulling schematics.

Kolbe 4500 Series products are available in White, Beige or Sand integral colors. Enhanced exterior finishes include Silver D or Bronze NA Renolit Exofol FX foil laminate, which contains Solar Shield Technology (SST) to control heat build-up in the laminated component. Custom exterior laminates also can be selected from a broad palette of colors.

Extrusions for Kolbe 4500 Series products are provided by REHAU®, a premium worldwide brand for polymer-based innovations and systems for the construction, automotive and furniture industries. Like Kolbe, REHAU is an independent, privately held company and a respected industry leader.

The new Kolbe 4500 Series can be ordered through selected Kolbe distributors. Further supporting the needs of commercial building owners, architects and contractors, these distributors can assist with take-offs, mock-ups and project management. For a list of distributors, detailed product descriptions and project success stories, visit www.kolbecommercial.com.