LEED® 2009 (Version 3) and LEED v4.0 for BUILDING DESIGN and CONSTRUCTION
– NEW CONSTRUCTION and MAJOR RENOVATIONS –
Wausau’s Windows and Curtainwall Contribution to Credits
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Credit Category
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Credits Impacted by Wausau Products
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Commentary
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Integrative Process (IP)
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IPc1 LEED v4.0 only
Integrative Process
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Available as an online support resource at www.wausauwindow.com, Wausau’s Energy Modeling Tool provides comparative building energy performance - annual energy use, peak demand, carbon emissions, daylight, glare and condensation – to optimize product selection. (Tool developed by the University of Minnesota Center for Sustainable Building Research. Simulations use COMFEN from Lawrence Berkeley National Laboratory’s Windows and Daylighting Group.)
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Location and Transportation (LT)
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No direct impact
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Sustainable Sites (SS)
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No direct impact
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Water Efficiency (WE)
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No direct impact
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Energy and Atmosphere (EA)
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1 Optimize Energy Performance
2 On-Site Renewable Energy
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Wausau’s products have long-standing recognition as some of the industry’s best in energy performance. Combined with Viracon’s high-performance glass, the “right” windows are always available for your building type and climate zone, including our extensive triple-glazed-capable product offering.
Wausau Window and Wall Systems® INvent.PLUS™ operable and fixed windows offer European benchmark thermal performance, but with clean styling and narrow sightlines attuned to U.S. architectural preferences. Innovative composite framing design creates an American Architectural Manufacturers Association (AAMA) AW Class architectural window series with best-in-class R6 fixed and R5 operable performance. No-compromise product selection is made possible by a unique combination of 45% aluminum extrusions and 55% engineered polymers (by volume).
Wausau’s SuperWall™-XLT Series curtainwall incorporates composite fiberglass pressure plates for lower U-Factor and better condensation resistance, which is ideal for cold climates and high-humidity applications such as hospitals.
Photovoltaic panels generate renewable electrical energy directly from sunlight, and can be readily integrated into building façades and skylights. Wausau was a pioneer in development of building-integrated photovoltaic (BIPV) façade systems in the U.S. Wausau SuperWall has been UL-listed as a BIPV system for several projects, and Wausau holds U.S. Patent # 6,646,196 B2 “Window Structure with Photovoltaic Panel.”
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Materials and Resources (MR)
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1.1 Building Re-Use - 75% and 1.2 95%
4.1 Recycled Content 10% and 4.2 20%
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Wausau provides a complete line of replacement windows and panning for historic renovations, energy upgrades and buildings’ re-use. The Custom Window™ by Wausaubrand is recognized nationally for its historically accurate windows utilizing true-divided lite muntin grids. These windows are well suited for application in tax-credit-eligible historic districts, buildings listed on the National Register of Historic Places, or wherever thoughtful restoration is a design goal. Wausau SEAL™ interior accessory windows also improve sound, energy, air and light control when existing single-glazed windows are left in place.
Wausau products are fabricated from aluminum extrusions containing LEED-defined “combined” post-consumer and post-industrial recycled content of 42% to 69%. Glass, steel and hardware components also contain high percentages of recycled or recyclable content.
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MRc2 LEED v4.0 only
Building Product Disclosure and Optimization – Environmental Product Declarations (EPDs)
MRc3 LEED v4.0 only
Building Product Disclosure and Optimization – Sourcing of Raw Material
MRc4 LEED v4.0 only
Building Product Disclosure and Optimization – Material Ingredients
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Pending revisions to the joint industry EarthSure PCR 30171600 "Window Product Category Rule (PCR)" for generation of manufacturer-specific EPDs, Wausau can provide industry-wide generic environmental profiles from www.quartzproject.org for anodized and PVDF-coated aluminum curtainwall extrusions, EPDM curtainwall seal gaskets and laminated glass. In some cases, EPDs for insulating glass units may also be available from the glass fabricator.
?Note on Source: The Quartz Common Products Database is an open database of composition, health hazard and environmental impact data for building products, sponsored by the Healthy Building Network® thinkstep®, Google®, and Flux®.
Wausau’s engineered windows, curtainwall, daylight control systems and accessories vary in composition and materials to meet each project’s functional and aesthetic needs. For product selection purposes, a general self-declared? Wausau Product Transparency Report is available, which lists ingredients used across all products and available options, with full disclosure of known hazards as identified in the Pharos online database. Pharos is a project of the Healthy Building Network, and is the tool employed by the Health Products Collaborative™ to generate Health Products Declarations.
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Indoor Environmental Quality (EQ)
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2 Increased Ventilation
4.1 Low-Emitting Materials –
Adhesives and Sealants
6.2 Controllability of Systems –
Thermal Comfort
7.2 Thermal Comfort-Design
8.1 Daylight and Views 75% and 8.2 90%
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Operable windows can be part of an effective natural ventilation strategy, when applied using the recommendations in the Carbon Trust “Good Practice Guide 237”[1998] and ASHRAE 62.1-2004. Wausau structurally glazed, operable window products such as INvent™ Series 4250i-VX, Visuline™ Series, and Zero-Sightline Series can provide “no-sag” performance even for oversized vents.
All primers, structural glazing adhesives and metal-to-metal sealants recommended by Wausau for use on-site meet applicable volatile organic content (VOC) limits defined by the South Coast Air Quality Management District’s (SCAQMD’s) Rule #1168.
Occupant-controlled operable windows may be used in lieu of comfort controls, as outlined in ASHRAE 62.1-2004.
Wausau’s products have long-standing recognition as some of the industry’s best in energy performance. Combined with Viracon’s high-performance glass, the “right” windows are always available for your building type and climate zone are always, including our extensive triple-glazed-capable product offering. When applied per ASHRAE Standard 55-2010 “Thermal Comfort for Human Occupancy.” Wausau’s window and curtainwall systems utilizing frame thermal barriers and warm-edge insulating glass can increase “Mean Radiant Temperature” perceived by building occupants, compared to lower-performing systems. The low air infiltration of Wausau’s AAMA AW Class-rated windows helps keep drafts to a minimum.
Most of Wausau’s products are available with between-glass Venetian blinds. In addition, Wausau ClearStory™ sun shades and light shelves help optimize natural daylighting and provide quality views without introducing glare or excessive heat gain.
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Innovation and Design Process (ID)
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1.1 thru 1.4 Innovation in Design
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Wausau's design engineers always are available via email and video conferencing for custom window and curtainwall consultation, charettes and analyses. Wausau designs and fabricates hundreds of new extrusion die profiles annually, while offering Revit™ models for standard products and project-specific Building Information Modeling (BIM). LEED Green Associates are on staff at Wausau to make your sustainable design vision a reality.
Wausau engineers and fabricates most major projects at our LEED-Silver manufacturing center in Wausau, Wisconsin. In partnership with design teams, we continually strive to add value and improve upon previous success through efficient, environmentally responsible, health-conscious practices and protocols.
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Chart updated August 2014 to include LEED v4.0. Note: Schools and healthcare facilities may have supplemental requirements and/or credit opportunities. Disclaimer: Wausau Window and Wall Systems takes no responsibility for product selection or application, including, but not limited to, compliance with building codes, safety codes, laws, merchantability or fitness for a particular purpose; and further disclaims all liability for the use, in whole or in part, of the information contained herein in preparation of project specifications and/or other documents. This information and the products described are subject to change at any time, without notice, and at Wausau’s sole discretion. “INvent,” “Visuline,” “INvent.PLUS,” “SuperWall,” “Custom Window” and “ClearStory” are trademarks of Apogee Wausau Group. All rights reserved. © 2014 Apogee Wausau Group.
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