When we at USG started to design our new headquarters space,
we knew we wanted to be proactive about sustainability, but sustainability was
not our first goal and neither was LEED certification. Our goal was good
design, and where there’s good design, there are sustainable design benefits.
In March
2007, nearly 950 USG employees moved to a new 18-story glass and steel building
located in Chicago’s
west loop. We are a building tenant with 12 floors totaling about 330,000
square feet.
As a building materials company that has consistently led
the industry in offering products that create healthy, sustainable spaces that
meet the needs of the most demanding building and design professionals, our
company was just as demanding with our own space. We used the latest in
building science to create a healthier and more productive space for our
employees, clearly a business-driven objective. What we also built was a space
that is more environmentally responsible at a lower cost-per-square foot than
our former headquarters. The sustainable features of our new headquarters
include:
We’ve registered our new headquarters, 550 W. Adams St., as LEED for Commercial
Interiors (LEED-CI) registered space, the U.S. Green Building Council’s
voluntary rating standard for green design and construction of tenant
improvements. Our goal is LEED-CI Gold certification. LEED-CI applies to tenant
improvements of new or existing office space. The rating system examines the
tenant’s electrical, mechanical, HVAC and plumbing systems, as well as
furnishings and the effect of all of these elements on occupants and their
comfort. The rating has six sections:
- Sustainable
Sites
- Water
Reduction
- Energy
and Atmosphere
- Materials
and Resources
- Indoor
Environmental Quality
- Innovation
and Design Practices
In the Sustainable
Sites section, we expect points for the Heat Island Reduction, Non-Roof credit
because our parking is located under the building, which greatly reduces the
Solar Reflection Index. While we are not the building owner, we influenced its
overall design by requesting a green roof as a requirement of occupancy. More
than half of our roof is covered with drought-resistant vegetation. We paid for
that roof, so we are allowed to submit points towards the Heat Reduction, Roof
credit.
As a Chicago-based building, meeting
the Density and Community Connectivity, and Transportation, Public Access
requirements were simple. To earn points, a project has to be close to at least
10 community sites such as banks, day care and health care. Our building is
within blocks of 19 of the 20 community sites LEED specifies and we are steps
away from train stations and bus routes.
For Water Use Reduction credits, we
submitted points for our use of low-flow, low-flush lavatories, water closets
and sinks, which has reduced water usage by slightly more than 25 percent.
We decided
against motion sensor operated devices both as part of our Water Reduction and
Energy Performance (part of the Energy and Atmosphere section) strategies as we
let our employees control their own environments. We reduced our Lighting Power
by nearly 27 percent from the Chicago Energy Code, a stricter standard than
what LEED requires. We installed shelf and pendant lighting that use low
voltage florescent bulbs. One hundred percent of our employees have natural
light and 97 percent have daylight views. We found during the spring and
summer, nearly half our employees didn’t turn all their lights on.
Building
windows have low-energy glazing with a shade system designed to improve
comfort, diffuse and divert the direct sun light, and allow for refracted light
to penetrate deeper into the space. The shade mats, manually controlled, are
made with 60 percent recycled content. None of our offices are along the
building’s perimeter window line, yet all have windows that provide access to
daylight views. We maximize natural and indirect light with lower workstation
walls and more glass to separate spaces. We also used our company’s own brands
of ceiling panels to provide high light reflectance. This allows us to improve
both the quality and quantity of the natural light by distributing more of it
throughout the space.
Nearly 100
percent of the company’s appliances and equipment are Energy Star rated,
including computers, printers, snack machines and cafeteria equipment. We
drastically reduced the amount of equipment we use by 94 percent. We use 45
pieces now compared to 732 individual pieces in our previous location. These
strategies earn us possible Energy Performance, Appliances and Equipment
points, and provide significant savings in fax lines and toner cartridges
costs.
Under the Materials and Resources section, we expect points
for Storage and Collections of Recyclables. We have trash and can recycling
bins in our cafeteria and break areas, and paper and trash bins in all printer
locations, offices and cubicle areas. We also hired vendors to help ensure
proper sorting of recyclable materials. During the construction process, we
diverted nearly 70 percent of construction waste away from landfills. We either
reused or recycled 73 tons of the total 108 tons of waste generated.
We
submitted points for selecting regionally manufactured building materials with
minimal environmental impact, including our own products. USG offers some of
the most environmentally friendly building products available today. Most of
our products are high in recycled content and produce no or low levels of VOCs
(volatile organic compounds). Products such as SHEETROCK brand gypsum panels
are extremely low in embodied energy which is the amount of energy required to
extract, manufacture and transport a building product.
Most of the
USG product lines we used such as our ceiling panels, flooring and wallboard
came from nearby manufacturing locations, including our East Chicago, Indiana
and Walworth, Wisconsin plants, as well as other Midwest locations.
When it
came to Indoor Environmental Quality, our material selection decisions focused
more on occupant health and comfort than manufacturing. The LEED rating system
centers primarily on VOCs used and emitted during manufacturing. USG’s efforts
go beyond that. We selected, and offer as part of our own brand options,
products that produce no VOCs or other emissions during manufacturing and
product use.
As noted
earlier, 97 percent of our employees have daylight views, a strategy also
eligible for Environmental Quality points and designed for occupant comfort.
Improved acoustical performance is another occupant comfort strategy that was
important to us and we’re citing our efforts in this area for possible
Innovation and Design Practices points.
The floor plan of our new space is designed to foster
interaction and collaboration. We reduced the average square footage and
footprint per occupant by 36 percent and increased our public spaces by nearly
300 percent. Yet, our new headquarters is actually quieter than our former
closed-office set up. At the centerpiece of our acoustical performance efforts
are our own Halcyon and Mars brand ceiling panels which absorb and block
significant amounts of sound. We used extensive acoustical modeling to verify
our materials selection. Using these ceiling panels increased our Noise
Reduction Coefficient from 70 percent in our former location to 90 percent in
the new space.
We also
installed a state-of-the-art sound masking system above the ceiling. The system
sends out an engineered background sound similar to soft blowing air to cover
noise and conversation in open areas, while improving privacy in enclosed
spaces. Our third sound control strategy was to surround offices on three sides
with a gypsum soffit system that reflects open area noise back and to the sound
absorbing ceiling.
Additionally, sound is controlled by
placing major locations of traffic concentration, such as filing, storage and
central printing areas, at the core of the building so that workspaces and low
traffic areas are towards the exterior walls of the building. Even stairwells
are centrally located next to the elevators and have a bright, open feel so we
have more employees using the stairs. We believe our increased floor plan
efficiency will also be eligible for Innovation and Design Practices points.
We expect
the LEED certification process to take approximately one year. Upon completion,
we plan to apply for the Environmental Protection Agency’s Energy Star
Challenge and the Green Building Initiative’s Green Globe System.
Our
decision to move our headquarters was business driven. We needed a more cost
effective space where our company and employees could grow and thrive for years
to come. The strategies we pursued to achieve our business objectives were also
made environmentally friendly and sustainable choices, a project benefit
indeed.