Wausau Window and Wall Systems(R) INvent(TM) -HP -XLT Series windows combine hurricane impact-resistant, energy performance and recycled content to meet buildings’ goals for sustainability and protection.

As part of the Advantage by Wausau® standard product offering, INvent-HP-XLT high-performance windows are pre-engineered and factory-glazed. Available on an accelerated delivery schedule, these competitively priced windows are backed with an industry-leading warranty of up to 10 years.

INvent-HP-XLT Series fixed, awning and project-out casement window units meet the ASTM E 1996 requirements for large “D” missile impact testing for Wind Zones 1-3 and “E” missile impact testing in Wind Zones 3-4 for essential facilities, such as hospitals. These windows were evaluated and successfully tested in accordance with Dade County Building Code Compliance Office Protocol TAS 201-94, “Impact Test Procedures;” TAS 202-94, “Criteria for Testing Impact and Non-Impact Resistant Building Envelope Components Using Uniform Static Air Pressure;” and TAS 203-94, “Criteria for Testing Products Subject to Cyclic Wind Pressure Loading.”

Addressing energy efficiency, condensation resistance, and thermal performance, the frame uses 24mm XLT polyamide thermal barriers. Helping meet Model Energy Codes, INvent-HP-XLT windows can achieve a Condensation Resistance Factor (CRF) as high as 65 and a U-Factor as low as 0.34 BTU/hr.sqft.ºF per the National Fenestration Ratings Council’s NFRC 100 standard.

INvent-HP-XLT windows also are tested to meet American Architectural Manufacturers Association (AAMA) AW-100 Architectural Performance Class ratings, including new AAMA 910-10 lifecycle testing to 4000 operating cycles, including thermal cycling, as well as stringent requirements for air infiltration, water resistance and structural integrity.

“The new INvent-HP-XLT product line is the perfect choice for design teams considering ‘better-than-code’ performance requirements,” notes Wausau’s health care market manager, Lisa May, LEED® Green Associate. She continues, “The widespread damage caused by Hurricane Sandy has increased expectations for storm resiliency. Invent-HP-XLT windows have been impact-tested with a very broad range of available options — such as large vent sizes, laminates, hardware types and installation accessories — to provide the functionality necessary for buildings of many different types, in warm climates or cold climates.”

Wausau’s INvent-HP-XLT hurricane impact-resistant windows are available with 3-7/8-inch and 4-7/8-inch frame depths. The aluminum frames contain recycled content averaging 70% or greater. Wausau’s quality-controlled, factory fabrication and glazing ensure the intended performance and accommodate dual-color finishes. With a palette exceeding 30,000 color choices, painted finishes may be requested as liquid or powder coatings with ultra-low volatile organic compounds (VOC) and VOC-free content. Durable, VOC-free anodize finishes also may be selected.

These qualities may aid buildings seeking certification under such programs as the U.S. Green Building Council’s LEED Green Rating System™.  Additional attributes include natural light, outside views, condensation resistance and thermal performance. Contributing to quiet, comfortable interiors, Wausau’s INvent Series family of windows are tested for Sound Transmittance Class (STC) ratings of 31 to 43, and Outdoor-Indoor Transmission Class (OITC) ratings of 28 to 35.

Integral between-glass blinds minimize maintenance, while managing light and glare. Multi-lock hardware can be ordered on most operating window types, for improved accessibility.

Product descriptions, architectural details, AutoCAD files, specifications and technical guides for Wausau’s INvent-HP-XLT Series windows — and for all of Wausau’s windows, doors, specialty glazing and cladding products, and curtainwall systems — can be found at WausauWindow.com.

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