Aero Dyne Turning Vanes & Rail help contribute to the USGBC LEED rating system.

LEED for Healthcare


Photo Courtesy of Haskell

Meet  the minimum-maximum Design Criteria for Noise in representative interior rooms and spaces.  NC, RC(N), RNC or dBA are the different methods that can be used to rate or measure sound to determine acceptability.  The minimum and maximum room noise values are established in the Sound and Vibration Design Guidelines for Healthcare facilities (2010 SV Guidelines) and outlined in the 2010 FGI Guidelines for Design and Construction of Healthcare Facilities (2010 FGI Guidelines).

LEED for Schools


Photo Courtesy of Nathan Kraft

Achieve a maximum background noise level from heating, ventilating and air conditioning (HVAC) systems in classrooms and other core learning spaces of 45 dBA (40 dBA if attempting IEQ Credit 9).  Recommended methodologies and best practices for mechanical system noise control are described in Annex B of ANSI Standard S12.60-2002 and the 2007 HVAC Applications ASHRAE Handbook, Chapter 47 on Sound and Vibration Control.

How H-E-P Turning Vanes can help improve acoustical performance and room noise compliance

Laboratory test data (Report no. 48037 dated 9/5/87) proves H-E-P Turning Vanes and Rail have reduced sound power levels as compared to symmetrical vanes, single thickness vanes and vanes with different center spacing.  Lower sound power levels will result in lower sound pressure levels (dBA) for comparable installations.

Having lower sound pressure levels can help achieve the following LEED credits:

  • LEED for Schools v9 IEQ Pre-Requisite 3 – Minimum Acoustical Performance
  • LEED for Schools v9 IEQ Credit 9 – Enhanced Acoustical Performance
  • LEED for Healthcare IEQ Credit 2 – Acoustical Environment

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