Overview of Underfloor Air Distribution (UFAD) Systems

Training overview
Professional Course
Self-paced Online
3 hours
From 89.90 USD

Start dates
89.90 USD
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Course description

In Overview of Underfloor Air Distribution (UFAD) Systems, you'll learn ...

  • What is an underfloor air distribution (UFAD) system and how it works
  • The advantages and disadvantages of UFAD relative to conventional HVAC systems
  • Design approaches and control strategies for UFAD
  • The most appropriate applications for UFAD


Credit: 3 PDH

Length: 51 pages

Underfloor air distribution (UFAD) turns air supply upside down, allowing a floor plenum to deliver conditioned air to the space via floor diffusers in the raised floor system. The floor plenum typically consists of pedestals and removable floor panels that can be rapidly reconfigured. The space is divided into two zones: an occupied zone extending from the floor to head level, and the unoccupied zone extending from the top of the occupied zone to the ceiling. The systems are designed to condition the lower occupied zone only and the temperature conditions in the upper zone are allowed to float above normal comfort ranges. The fact that conditioned air is delivered at floor level does provide energy savings while improving comfort and indoor air quality.

While this strategy is most effective in new construction, it also can work in major retrofits. Thoughtful design is the key to successful application. This 3-hour course discusses how the UFAD system differs from conventional HVAC design and reviews several key design issues pertinent to UFAD design.

This course is aimed at mechanical and HVAC engineers, architects, building designers, contractors, civil estimators, energy auditors, and facility managers. No specific prerequisite training or experience is required.

Who should attend?

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Training content

This course teaches the following specific knowledge and skills:

  • Differentiate between conventional overhead (OH) and underfloor air distribution (UFAD) systems
  • The difference between displacement ventilation and hybrid UFAD systems
  • Comfort and productivity issues associated with UFAD systems
  • Energy savings and indoor air quality improvement with UFAD systems
  • Differences between perimeter and internal zones
  • Design approaches and control strategies for UFAD systems
  • Access floor system design and construction issues
  • Economics, condensation, dirt and fire protection issues associated with UFAD systems
  • Sustainability aspects of UFAD, as well as how UFAD systems can contribute to energy efficiency measures applicable for LEED certification


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7915 FM 1960 West, Suite 130
77070 Houston Texas

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