What is it?
Underfloor Air
Underfloor Wire & Cable
Why use it?
Who's using it?
What others are saying
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Energy Efficient Strategies
Design & Construction
Case Studies

The Building Technology Platform® comes complete with an access floor and equipment suitable to provide for a flexible underfloor wire/cable and air delivery distribution solution – all within an optimized slab-to-slab building height!Modular Plug & Play power wiring, cabling and HVAC components provide complete flexibility. As your business needs change so too can your service distribution system – quickly, easily and cost-effectively!

World Class Hunt Center Encourages Collaboration, University of Arkansas Daily Headlines, September 2007
The flexible components of the building are not only evident in the energy the space communicates but also in the physical capabilities of the structure. The Hunt Center is the largest raised floor academic building in Arkansas. This means that all electrical data and HVAC is located under removable panels in the floors allowing for simple reconfiguration of outlets and other electrical access as educational or research needs change. Dan Street, construction coordinator in the office of Facilities Management, said, "having raised floors and movable walls added somewhat to the initial cost, but the flexibility will more than pay for itself by saving on reconfiguration costs in the future." 

Good Sense:  Underfloor air distribution is gaining popularity in today's built environment, Consulting-Specifying Engineer, January 2007
While raised floors are not a new concept, the move to the digital environment is making UFAD an increasingly popular concept. Unlike data centers that use raised floors as high as 3 ft., UFAD raised floors range from 10 in. to 18 in. The raised-floor plenum also is used for power and data cabling. Buildings implementing UFAD are gaining in popularity for a number of reasons:

1. Interior comfort in buildings is higher than buildings with conventional overhead cooling.
2.  Cost for interior reconfigurations is much lower than non-UFAD buildings.
3.  Air devices, as well as power and data floor boxes, can be easily moved to accommodate new furniture modifications.
4 .  The effectiveness of the ventilation system is better as the supply air is introduced at the floor and returned at the ceiling, more effectively removing contaminants from the space. 

HP's data center consolidation provides management insights,SearchDataCenter.com, August 2006
Hewlett-Packard Co. (HP) has a vision for the data center of the future, and it is using its own massive data center consolidation project as the proving ground for its ideas.....Despite the smaller footprint and higher server density for its new facilities, HP plans to stick with basic raised floor air cooling. According to Sharad Singhal, distinguished technologist at HP, delivering air flow properly will prevent HP from having to go with high-density cooling technologies.
Wiring Underfloor - Not Underfoot, www.betterbricks.com
M/E Roundtable Discussion with:
Thomas F. Flickinger, P.E., managing principal, Durrant Engineers, Madison, Wis.
Tim Koch, P.E., electrical project engineer, HDR Inc., Omaha
Kenneth L. Lovorn, P.E., president, Lovorn Engineering Associates, Pittsburgh
Scott Siddens, moderator

Raised floors are the ideal multi-tasking system, serving both as a plenum for HVAC and conduit for electrical wiring and data cabling. Proper implementation, however, should involve a closely coordinated effort by the design team to guarantee that specifications meet the needs of all systems.
Growing Commitment in Health Care, Debra Wood. March 2006, McGraw Hill-Southeast Construction
"All you have to do is remove square planks that make the raised floor, and you can reroute the electrical," Garcia-Huidobro said. "You won't see any wires.
New Construction Awards 2004: Technology Leaps Public/Government Winner: FedEx Institute of Technology, Regina Raiford Babcock, Oct 2004, Buildings Magazine, Article
"The underfloor ductless distribution system for HVAC is the second of its kind in Memphis, and the first in a state-owned building. Because of site restraints, the institute was outfitted with a remote chiller and boiler facility. Projects held at the institute can last anywhere from 1 semester to 2 years. The use of the underfloor HVAC system makes it much easier to reconfigure walls to accommodate different-sized classes."
New Construction Awards 2004: A New Dimension - Private/Corporate Winner: ABN AMRO Plaza, Jana Madsen, October 2004, Buildings Magazine, Article
"Flexibility was a big priority for the bank. Analysis revealed the cost and frequency of reconfigurations. Systems and strategies to increase flexibility and adaptability were extremely desirable. Recognizing that groups would need to reorganize and reconfigure spaces to adapt to new business practices, the project team selected modular furniture and a raised floor system."
Airway Systems, Joseph Halza, August 2004, Buildings Magazine, Article
"Duct systems require careful design. The challenge is to maintain relatively straight runs while accommodating all building structural elements and aesthetic requirements. Changes in the floorplan during construction can impact duct-system layout and increase installation cost. Once installed, changes to a duct system are impractical, meaning comfort and energy costs may be compromised if office space is rearranged or building-use patterns change. In airway systems, diffusers can be located anywhere in the floor or ceiling grid, simplifying air-distribution design and layout."
Energy Efficiency Generated Beneath the Floorboards, Steve Hritz, July 2004, Denver Business Journal, Article
"Originally introduced to cool relatively small spaces with higher heat loads like computer rooms, raised floors have become a standard in many of today's open and flexible office spaces..... Underfloor air distribution borrows from this technology by housing a building's heating, ventilation and air conditioning (HVAC) systems under a raised floor along with power, voice and data cabling. Just having all these systems located in one easily accessible location can improve operating flexibility and reduce the cost of reconfiguring the associated building services."
Adaptable Workplaces, Jim Gelis, August 2003, FacilitiesNet, Article
"Enclosure systems offer multiple options in the form of demountable walls, raised floor systems, acoustical ceilings and furniture systems. All these enhance adaptability."
The Air Down There, January 2003, NAIOP, Article
"Say goodbye to conventional overhead ventilation systems — air circulation has taken on a whole new look...and feel.......As shown in the accompanying graphic, underfloor air systems use raised flooring (eliminating the need for complicated ductwork) and don't rely on the heat generated by overhead lighting to warm the circulating air......An additional benefit of underfloor air distribution systems is flexibility. If a workspace is reconfigured to accommodate additional people or a different industry, conventional systems usually require extensive alteration before the space is ready for occupation. With an underfloor system, floor vents can easily be moved to work with the new office design."
10 Trends Affecting The Corporate Environment, Jeff Waters, December 2000, Facilities Design & Management
"The emphasis on flexibility will not be limited to campus planning; it will impact the configuration of the buildings as well. Reducing the elapsed time and simplifying the process of reconfiguring office space will be critical as corporations reengineer, reorganize, and restructure while seeking to get products to market faster. Turning the building "upside down" is one way to accomplish this. While voice, data, and electrical distribution systems often are distributed above the ceiling, installing these systems under raised flooring will simplify and speed space-planning changes."