| EQ Credit 4 – Low-Emitting Materials
Option 6 - Ceilings and Wall Systems
LEED Requirement: All acoustical ceiling systems and wall coverings must meet CA Dept. of Health Services Standard Practice
for the Testing of VOC Emissions.
Armstrong Ceiling and Wall Systems Contribution: Many Armstrong mineral fiber ceiling and wall systems will meet the Low-emitting Materials requirement for Ceiling and Wall
Systems.
EQ Prerequisite 3 – Minimum Acoustical Performance is required. Design classrooms and other core learning spaces to meet the Reverberation
Time (RT) requirements of ANSI Standard S12.60-2002 (Annexes B-D 45 dBA). Also design classrooms and other core learning spaces
to meet the Sound Transmission Class (STC) requirements of at least 35.
EQ Credit 9 – Enhanced Acoustical Performance for Schools
LEED Requirement: Minimum Acoustical Performance is required. Design classrooms and other core learning spaces to meet the
Reverberation Time (RT) requirements of ANSI Standard S12.60- 2002 (Annexes B-D (40 dBA.; 35 dBA). Also design classrooms
and other core learning spaces to meet the Sound Transmission Class (STC) requirements of at least 35.
Armstrong Ceiling and Wall Systems Contribution:
 Many Armstrong Ceilings and Wall Systems meet these acoustical requirements. Learn more about Classroom Acoustics and use the reverberation tool to aid in product selection.
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