Sound Absorption

Hard Surface Classroom
Black arrows represent direct sound, with a clear path from teacher to student. Red arrows represent reflected sound. Note the many red arrows which indicate the longer, more indirect paths taken to reach the student.

Acoustically Treated Classroom
The addition of sound absorbing materials reduces late arriving reflected sound, lowers reverberation time, and improves speech intelligibility.





High Light Reflectance

Direct Lighting
  • Traditionally high operating costs
  • Annoying visual interferences - glare and/or harsh shadows - which seriously affect occupant comfort and effectiveness


Indirect Lighting
  • Brighter, more uniform illumination - especially with a high LR ceiling (Armstrong)
  • Reduced operating and maintenance costs - fewer fixtures are required for the same level of useable lighting
  • Reduced glare and softer shadows - less eyestrains



School Zone Requirements

  • Reduce noise and reflected sound
  • Sound attenuation
  • Humidity resistance
  • Light reflectance
  • Fire reaction
  • Impact resistance
  • Chemical resistance
  • Stain resistance
  • Accessibility and demountability
  • Economical
  • Environmental protection