light bulbs

EDC is now the official magazine for the LEED professional

Concrete / Higher Education

Creative Ventilation Breathes Potential into Rec Center

An inventive green approach to tilt-up concrete is one reason CSU East Bay runs without an active heating system.

October 03, 2011
Trans

While recreation and wellness centers seem like a mainstay on college campuses, it wasn’t too long ago that they were not. If you think back, the higher education experience has often been categorized into, and known for, academics and athletics. You had the really smart students and then you had the students that were on their way to the NBA or the NFL, or to play professional baseball. What the recreation center has done is fill-in the gap. It’s a place for students of all levels of academic and athletic abilities. It is the social place for student life on campus to not only participate in physical activity but to “see and be seen” by other students.

The Recreation and Wellness Center (RAW) at California State University East Bay in Hayward, Calif., is such an example. Its popularity rivals that of the campus library, and it’s become a huge recruiting tool because of its proximity to student housing.

Featuring a two-court gymnasium, a fitness center, multipurpose rooms and support areas, CSU East Bay’s Recreation and Wellness Center is a place for students to exercise, socialize, and burn off steam in between or after classes. The facility is master planned at about 56,000 square feet, with the ability to add an additional 22,000 square feet of multi-use space in the future.

The site itself is very interesting. Set in Northern California, we at LPA were aware of the area’s prospects for earthquakes and resulting structural challenges. At the same time, we found great gifts in the region’s climate. The sloping site is located a mere 50 minutes south of San Francisco. The hillside site is part of the geological landform that defines the Bay Area. As a result, the site offers stunning panoramic views, which already started to dictate a level of transparency.

Typically, there is this concern that windows and transparency is a bad thing, because students will look outside and lose focus. Well, the opposite is true in a Recreation and Wellness Center. Students go there to exercise, socialize and enjoy views of their surroundings while they’re at it. The recreation center at CSU East Bay gives students that transparency and a connection to nature, while protecting them from the temperature swings of the outdoors.

From a mechanical engineering perspective, the climate challenges presented by the bay were intriguing. We found that heating was needed, over cooling. The design of the center had to allow the building to capture heat during the day, and release it at night, especially because this facility is in use by students at all hours of the day. We came up with an idea inspired by the water-filled trombe walls of the 1960s.

Columns of Plexiglas tubes used to be filled with water, and placed on south-facing sides of buildings. They’d head up during the day and when the sun went down and the temperature started dropping, the tubes of warm water would act as radiators — they’d release heat. It’s called the Flywheel effect.

We paired this idea of gaining and releasing heat with tilt-up concrete, the most cost-effective construction technology, and designed something which has never been done before — a Ventilated Tilt-up Trombe Wall. It’s a southwest-facing wall, where light comes through glass and hits concrete, where it bounces around inside of the chamber, and hyper-heats concrete. At night, the heat released from the nine-inch thick wall warms the great volume of the CSU East Bay gymnasium.

A concrete wall warms naturally; we simply enhanced the process by placing glass in front of it. Our in-house engineers ran the calculations, and it worked.

The university is excited because the Ventilated Trombe Wall is one of the reasons the Wellness and Recreation Center runs without an active heating system. We as the design team are excited because we’ve created a new sustainable feature to add to our arsenal of techniques.

Jurors from the recent AIA Central Valley Design Awards took kindly to the feature as well, praising LPA’s “clear and well-integrated sustainable strategies” on the center.

“Simple building forms, cost-effective tilt-up concrete construction and modest materials make the most of a limited budget while taking cues from neighboring campus buildings,” said a juror. “The Wellness Center’s interiors are solid and well organized with active architecture well-suited to the purpose of the space.”

Since more than 70 percent of the center’s usable areas are naturally ventilated, the organization of the program has certainly paid off. The gymnasium, track and locker rooms are accommodated within a two story box with limited windows. The main lobby, aerobic and fitness areas reside within an all-glass triangle. This design approach not only articulates the program elements on the exterior design but also organizes the spaces according to naturally ventilated versus conditioned space. To keep the sun off the triangle, there’s a double skin, meaning the outside is covered in perforated metal. Our clients at the university opted to paint it red because it’s a contextual campus color that relates to the nearby student housing.

Atop the triangle, is a glass sky box — a place where a climbing wall can go in the future. It’s high enough that climbers will be able to pop their heads past the top of the building. Views of the Back Bay can be enjoyed, while still remaining inside of the facility.

In keeping with the university’s mission of sustainability, 100 percent of all stormwater is treated onsite. The roof plane is shaped to funnel all rainwater to a series of bioswales, where a combination of native plants and climate-appropriate species absorb the runoff before it recharges the groundwater, also avoiding city storm drains. 

And the feedback from the students? It’s been great. Obviously, they’re excited because they haven’t had a facility like this before. It’s a 100 percent student-funded facility, and it signals the importance of a place that promotes balance at academic, higher education facilities, from the students themselves. The Wellness and Recreation Center is light on resources, and the natural environment is paramount to CSU students. University management anticipates nothing less than efficient, responsible spaces and they will certainly find this in their Wellness and Recreation Center — a sustainable model for future campus buildings.

 

 

It’s our Nature; Design Matters

As humans, our love affair with nature is centuries old. People are attracted to places they have a connection. Sustainable design, or ‘good design’ as we call it, teaches a very essential thing — spaces are better when they are in balance with nature. The truth is this organic kind of design approach surpasses higher test scores and healthy indoor environments. Architecture that stimulates the senses invites all visitors to stay. Really good design — or green design — is a strategy for growth.

Green designed facilities can and should create measurable value for your campus. Increased enrollment, easier recruitment — where the finest instructors now come to you, and higher rates of retention — students stay on campus longer which keeps revenue onsite as well. We have a client in Ontario, Calif., that experienced all of the above, within one year. If your facility doesn’t produce a financial advantage, then the mark has been missed.

“Study nature, love nature, stay close to nature. It will never fail you,” said Frank Lloyd Wright. What he describes in a nut shell, is an organic-based design process. Not that all surfaces have to be made of natural materials or that every wall needs to be curved or mushroom-shaped, or things like that. But it’s about the senses and architecture that stimulates these senses. Decades ago, we started sealing up our buildings, putting reflective glass on them and pumping conditioned air in. This started to dull our senses and indoors and outdoors became vastly different. There is something wonderful and empowering about being in nature. You feel alive when all of your senses are stimulated.

 

Glenn Carels is a design principal at Calif.,-based LPA Inc. As the California State University system moves toward greener campuses, Carels has played a critical role in the implementation of its sustainability guidelines and initiatives. During his 25-year career, he’s garnered 37 AIA awards for his sustainable design work.

You must register or login in order to post comments.

Multimedia

Videos

Image Galleries

AHR 2012

View the products from AHR 2012.

Podcasts

Improving the environment in your home – improving the environment overall with Icynene spray foam insulation. ICYNENE spray foam insulation solutions provide energy savings for homeowners and create sustainability through air-sealing and reduce carbon dioxide emissions from buildings by thousands of tons per year. Icynene’s commitment to the environment is demonstrated through our us product development and manufacturing processes and our product innovations. Sponsored by:

ICYNENE
More Podcasts

THE MAGAZINE

EDC Magazine

cover

2012 May

 Come check out the May 2012 issue of EDC!

TABLE OF CONTENTS SUBSCRIBE

EDC Magazine STORE

integrative-design-guide-to.gif
The Integrative Design Guide to Green Building: Redefining the Practice of Sustainability

In The Integrative Design Guide to Green Building: Redefining the Practice of Sustainability, 7group's principals and integrative design pioneer Bill Reed introduce design and construction professionals to the concepts of whole building design and whole systems.

More Products

Green Product Buzz Guide

Green Product Buzz GuideEDC's Green Product Buzz Guides bring you the latest in green building products and services from companies exhibiting at trade shows, including Greenbuild, the AIA Expo, Coverings, Surfaces and more.

STAY CONNECTED

Facebook Twitter  LinkedIN  youtube

EDC Crossword

EDC CrosswordWelcome to EDC's crossword puzzle. This puzzle was created specifically for the green building industry by Myles Mellor; all the clues and answers relate to industry terms. Click to view the interactive version of the puzzle that appeared in print. Or if you prefer,  you'll find a PDF link to this month's puzzle and solution.