Select mineral fiber, fiberglass, or metal ceiling panels for a given application

Steps

1. Identify the governing performance driver for the space (moisture exposure, acoustic absorption target, durability/washability, or design flexibility) before comparing substrates.
2. For mineral fiber panels, recognize they offer a broad range of NRC/CAC combinations for general commercial use but standard formulations are moisture-sensitive and can sag or fail in high-humidity or wet areas unless a specifically rated product line is used.
3. For fiberglass panels, recognize they're commonly chosen for higher sound absorption (NRC) at lighter weight, with some formulations offering improved humidity/sag resistance versus standard mineral fiber — confirm the specific product's tested data rather than assuming generic fiberglass performance.
4. For metal (perforated or solid) panels, recognize acoustic performance depends entirely on an applied acoustic backing/pad — request the tested NRC/CAC of the complete panel-plus-backing assembly, since a bare perforated metal pan has minimal absorption on its own.
5. Request the manufacturer's ASTM C423 (NRC/SAA) and ASTM E1414 (CAC) test data for the specific assembly being specified in every case, since these values are assembly-specific and not transferable between product lines.