Absorptive ceiling, wall and floor materials will help projects meet RT requirements. Design the placement of absorptive material based on the space programming and layout. For example, the design for a lecture hall should not include absorptive material

Absorptive ceiling, wall and floor materials will help projects meet RT requirements. Design the placement of absorptive material based on the space programming and layout. For example, the design for a lecture hall should not include absorptive material above the lecturing position, which would absorb the lecturer’s voice instead of reflecting it into the audience.