Retrofit on Schedule & on Budget: A Rainscreen Case Study | Video
Bendheim Wall-F rainscreen system effortlessly upgrades a commercial building without costly, wasteful demolition
About Rainscreen Applications for Retrofit Projects
An architectural rainscreen is an over-cladding system that is drained and back-ventilated, or pressure equalized. Both rainscreen types allow water to escape and air to circulate behind them. Rainscreen systems can reduce the risk of mold, mildew, and water damage to buildings. They can breathe new life into existing structures by presenting an attractive, refreshed, modern face. And they can accomplish this without disrupting occupants or requiring costly, wasteful, time-consuming demolition.
Retrofits & Green Building
The growing inventory of aging buildings, marked by a dated aesthetic and deterioration, poses architectural and environmental challenges. Many of our buildings were constructed during post-war booms in the 1960s and 1970s, and are approaching 50 years of age and older. Their skins have a reasonable life expectancy of up to 30 years.
According to Simpson Gumpertz & Heger, an engineering and design firm specializing on building rehabilitation: “Most old buildings perform poorly for their owners and occupants. Whether they leak, look shabby or waste energy, they still provide the basis for a sustainable future. Most of our building environment is already built; and the greenest building strategies are to reuse, not demolish, existing buildings… For environmental performance improvements, enclosures can be tuned-up, over-clad or re-clad. Each strategy involves varying levels of demolition, cost and energy improvements on the exterior. Overcladding and recladding offer additional opportunities to rebrand and update the building’s aesthetics.”
Rainscreens: Reuse | Reduce | Recycle
Rainscreen application supports at least two of the three core pillars of the green movement – Reduce & Reuse. Retrofitting an existing building by over-cladding with a functional, attractive glass rainscreen allows maximum reuse of existing building structures and resources, eliminates wasteful demolitions, and reduces the quantity of new construction materials needed.
The third core pillar of eco-friendly construction – Recycle – can also be addressed through the application of glass rainscreen systems featuring up to 100% recycled metal components, such as our compression glass fittings, and/or up to 40% post-consumer recycled glass panels, such as our decorative EcoGlass™.
In their article “The Science of Over-Cladding,” published in the NRU City of Toronto Edition, authors Michael McClelland, Graeme Stewart, and Dr. Ted Kesik note the following: “Internationally, over-cladding aging high-rises has been a key strategy for carbon reduction, especially in the European Union. A leader in the field has been Germany, where the tower blocks of post-wall Berlin have been significantly upgraded as part of both environmental policy and unification. In Bratislava, the entire district of hundreds of tower blocks is in the process of being over-clad as part of Slovakia’s environmental agreement in joining the EU… The project is not only making buildings more efficient, but also breathing new life into this aging district through new mixed use and improved public space.”
Ease of Rainscreen Installation & Maintenance
Existing buildings already present ample available surface to which new insulation, moisture protection membranes, and rainscreens can be applied with relative ease.
Eliminating or minimizing disruption to normal building operations is key to the rainscreen / over-cladding strategy. Rainscreen application allows the retrofit process to take place almost exclusively on the outside of the structure, avoiding interruption to occupant activities inside the building. This process also provides a unique opportunity to completely transform the building appearance and convert derelict structures into attractive architectural landmarks.
Bendheim’s patented fittings for glass rainscreens, ventilated facade, and interior wall cladding applications offer exceptionally easy setup and quick assembly methods. Unlike other systems, these compression fittings require no cut-outs or holes in the glass, affording superior wall strength and low fabrication costs. Also unique to our clipped glass systems, individual glass panels can be quickly and easily replaced without having to deglaze surrounding panels:
3001 Orchard Parkway Case Study
At a Glance
- The Challenge: Modernize and raise the profile of the non-descript circa 1980 office building, and increase rent revenue potential.
- The Solution: Bendheim’s ventilated decorative glass rainscreen, featuring our Längle® Wall-F compression fittings and three different types of laminated safety glass, enveloping the building.
- Location: San Jose, CA
- Completion Year: 2014
- Approx. Surface Area: 5,000 sq. ft.
- Architect: MODULUS
- Glazier: Classic Glass
- Glass: Safety Laminated
Primary Retrofit Goals:
- Achieve a contemporary, elegant aesthetic
- Budget-friendly remodel
- Avoid disturbing existing occupants
- Ease of installation and maintenance of new facade
Feedback from the Architect:
“… We turned to the possibilities of what we could create using the Längle clip rainscreen as a key element. With the conceptual approach of a jeweled screen to modernize and accentuate the existing massing, the system proved to be a perfect match unachievable through any other avenue. Both its cost and ease of installation resulted in a newly transformed building garnering great attention and accolades throughout the technology driven Silicon Valley, with a facade and image unlike any other in the area. It was without question a huge success and we’re anxious to use this product again in new and inventive ways as we transform the face of what buildings and architecture can be.” — David Fenster, AIA LEED AP, MODULUS
From the Contractor:
“It was our first time installing Längle rainscreens, but hopefully not the last. Everything went very smoothly, and the process was straightforward and surprisingly stress-free from start to finish, especially when you consider that tenants were in and out of the building while we were mounting the system. The Bendheim team was very responsive and a pleasure to work with. We are very proud of how the installation came out and of our part in this beautiful transformation.” — Christine Jacobs, Classic Glass, Inc.
Introducing New Ultra-White Laminated Fade® And Low-Iron Etched Fade® Architectural Glass
Bendheim’s Channel Glass Wall Systems Win 2015 Architizer A+ Award
Bendheim’s Channel Glass Wall Systems have been named the Architizer A+ Jury Award Winner in the prestigious global competition’s Building Products category.
Bendheim’s Channel Glass was chosen from entries submitted by over 100 countries. A panel of over 300 renowned jurors, including architects, designers, cultural thought leaders and developers, deemed Bendheim’s glass systems the category winner and representative of the best in the world of architecture.
Over the last three years, the highly esteemed Architizer A+ Awards program has strived to recognize the industry’s top international architecture and design offerings. Each submission is evaluated based on form, function, and innovation.Contest winners are chosen by a renowned jury.
Notable industry leaders participating on this year’s jury include Charles Renfro, Bjarke Ingels and Tom Kundig, as well as respected individuals from fields outside of architecture including Tony Hsieh, CEO, Zappos; Yves Behar, Fuseproject; John Edelman, CEO, Design Within Reach; Cameron Sinclair, Architecture for Humanity; and Barry Bergdoll, MoMA.
Bendheim Wall Systems’ Channel Glass offers a stunning alternative to traditional exterior and interior flat glass wall systems, creating virtually seamless glass walls of unlimited lengths. Channels of glass, standing as tall as 23 feet, are available in six decorative textures, three specialty thermal coatings, and hundreds of ceramic frit colors. The glass contains a total recycled content of approximately 60%, and is manufactured by Lamberts in Europe’s only ultra-clean burning, oxygen-fueled cast glass furnace. It is the only factory-produced tempered channel glass certified by the Safety Glazing Certification Council (SGCC) and available with a 100% heat soak testing.
Construction Canada Magazine Publishes Cover Story on Bendheim Glass Rainscreen Systems
We are pleased to announce that “Construction Canada,” the official publication of CSC (Construction Specifications Canada), has selected to feature Bendheim Wall Systems’ educational article on glass rainscreen technology as the magazine’s February 2015 Cover Story.
The expert article, titled “Glass Rainscreen Systems Enhance the Building Envelope,” discusses the design principles and benefits of flat and channel glass rainscreen assemblies. It was authored by Said Elieh, Director of Technical Design for Bendheim Wall Systems, and is intended for all building professionals (architects, designers, engineers, specification writers, construction managers, contractors, building owners, etc.), regardless of their rainscreen expertise level. The instructive commentary reveals the significant role glass rainscreen technology can play in the protection and improvement of the building envelope. It demonstrates the clear functional and design benefits of this over-cladding strategy for new and retrofit buildings alike.
To access the complete, authorized PDF reprint of this educational article on glass rainscreen design and application, please follow this link: Construction Canada Cover Story: Glass Rainscreen Systems Enhance the Building Envelope.
“Construction Canada” is a leading architecture and design publication with a qualified audience of over 12,000 professional readers.