Engineered for spaces where hygiene and humidity control intersect, the moisture resistant antimicrobial mineral ceiling board delivers outstanding performance in healthcare, food processing, and commercial environments. Its core formulation actively inhibits the growth of mold, mildew, and bacteria, while the treated surface resists moisture absorption to prevent warping and sagging over time. This board builds on the same trusted platform as our Cleanroom Antimicrobial Mineral Ceiling Board, adapting its antimicrobial technology for broader architectural use. For projects where fire safety codes are stringent, the Fire Resistant Antimicrobial Mineral Ceiling Board can be paired to achieve a unified ceiling system with dual protection. In kitchens and laboratories that require frequent cleaning, the Washable Antimicrobial Mineral Board Panel shares a similar wipe-down durability, while the Pharmaceutical Cleanroom Mineral Board demonstrates how these formulations meet rigorous regulated standards. Every variant integrates bio-inhibiting agents directly into the mineral fiber matrix, ensuring lasting protection that does not diminish with surface wear, making this family of boards a reliable choice for sustained indoor air quality.
The Moisture Resistant Antimicrobial Mineral Ceiling Board combines high-density mineral wool with an advanced hydrophobic binder and a broad-spectrum antimicrobial additive. This composition provides a balanced solution for environments exposed to intermittent moisture, such as indoor swimming pool halls, commercial laundries, and high-humidity atria. The board maintains dimensional stability even when relative humidity reaches 95% RH, resisting the common ceiling failures of sag and microbial discoloration. Its surface porosity has been engineered to allow vapor diffusion while blocking liquid water ingress, preserving acoustic properties without trapping contamination. With a smooth, matte white finish, the board reflects light efficiently and coordinates seamlessly with standard suspended grid systems, enabling quick installation and straightforward replacement of individual panels. Regular maintenance requires only dry wiping or gentle vacuuming, and the antimicrobial performance remains effective throughout the product’s service life, contributing to cleaner air and reduced operational costs.
- Antimicrobial agent registered with EPA and compliant with ISO 22196 for bacterial reduction >99.9%
- Moisture resistance tested per ASTM C473 – no visible sag at 95% RH after 28 days
- High sound absorption with NRC up to 0.70 in certain mounting types
- Surface burning characteristics: Class A per ASTM E84
- Light reflectance value >0.85, reducing lighting energy demand
- Formaldehyde-free binder for improved indoor environmental quality
- Recycled content certified by third-party programs
- Available with square or tegular edge details for various grid systems
| Parameter |
Specification |
| Nominal dimensions |
24″ × 24″ (610 mm × 610 mm), 24″ × 48″ (610 mm × 1219 mm) |
| Thickness |
5/8″ (16 mm), 3/4″ (19 mm) |
| Weight |
0.85 – 1.15 lbs/ft² (4.2 – 5.6 kg/m²) |
| Core material |
Mineral wool with bio-inhibitor and hydrophobic treatment |
| Surface finish |
Smooth, washable white paint with antimicrobial additive |
| NRC (ASTM C423, Type E-400 mounting) |
0.65 – 0.70 |
| Sound attenuation class (CAC) |
≥ 35 dB |
| Moisture sag resistance (95°F/95% RH, 28 days) |
≤ 0.10″ deflection |
| Thermal conductivity |
0.33 BTU·in/(hr·ft²·°F) at 75°F mean temperature |
| Fire rating |
Class A (ASTM E84); flame spread ≤ 25, smoke developed ≤ 50 |
| Light reflectance |
LR-1 (≥ 0.85) |
| Antimicrobial efficacy |
ISO 22196: >99.9% reduction against tested bacteria; ASTM G21: zero fungal growth |
| Edge profile options |
Square lay-in, tegular, reveal |
| Recycled content |
Pre-consumer: 30–40%; Post-consumer: 5–10% |
| Mold resistance |
Score of 10 per ASTM D3273 (no mold growth) |
