In demanding indoor environments, standard ceiling solutions often fall short when it comes to moisture and microbial threats. Our product family addresses these challenges head-on with a range of specialized mineral boards. For spaces requiring absolute sterility, the Cleanroom Antimicrobial Mineral Ceiling Board delivers ISO-class cleanliness with integrated antimicrobial protection. In washdown areas and food processing facilities, the Washable Antimicrobial Mineral Board Panel withstands repeated cleaning without compromising its hygienic surface. Where fire safety takes priority, the Fire Resistant Antimicrobial Mineral Ceiling Board combines fire endurance with mold defense, while the Moisture Resistant Antimicrobial Mineral Ceiling Board performs reliably in washrooms, locker rooms, and other high-humidity zones. Every board is manufactured with a cementitious and mineral wool core that actively inhibits fungal colonization, ensuring long-term structural integrity and healthier indoor air.
The Mold Resistant Mineral Ceiling Board stands as our cornerstone solution for areas persistently exposed to dampness and condensation. Engineered with a dense, non-nurtrient core and sealed with an anti-fungal coating on all six sides, it halts mold germination even when relative humidity exceeds 90%. This board is ideal for basements, pool enclosures, laundry centers, and coastal commercial spaces. Its sag-resistant formulation maintains a flat, professional appearance across years of service, and the bright white surface reflects over 85% of light, trimming lighting costs while improving visual comfort. Unlike paper-faced products that can harbor spores, the Mold Resistant Mineral Ceiling Board uses a fully inorganic matrix that simply does not provide a food source for mold, delivering proven resistance validated by independent laboratory testing.
Technical Parameters of the Mold Resistant Mineral Ceiling Board
Every batch of our mineral ceiling boards is subjected to rigorous quality control to guarantee consistent performance. The following key technical parameters define the product’s capabilities:
- Mold Resistance: ASTM D3273 score of 10 – absolutely no mold growth after 28 days.
- Antimicrobial Activity: JIS Z 2801 tested; reduces bacterial colonization by 99.9% within 24 hours.
- Moisture Stability: Maximum 0.1% sag at 104°F and 95% RH (ASTM C473).
- Fire Performance: Class A rating per ASTM E84; flame spread index 10, smoke developed index 15.
- Sound Absorption: NRC of 0.60 for 5/8″ panel and 0.70 for 3/4″ panel.
- Light Reflectance: LR-1 (minimum 85%) per ASTM E1477.
- Durability: Impact resistance meets ASTM C367 Class C; suitable for moderate-traffic spaces.
- Dimensional Tolerance: Length/width ±1/16″, squareness within 1/16″ per linear foot.
Detailed Performance Data Sheet
| Property |
Specification |
| Core Material | Mineral wool, expanded perlite, clay, inorganic binders, and non-toxic biocides |
| Panel Weight | 5/8″: 1.2 lbs/ft² (5.86 kg/m²) / 3/4″: 1.4 lbs/ft² (6.83 kg/m²) |
| Nominal Thickness | 5/8″ (15.9 mm) and 3/4″ (19.1 mm) |
| Standard Sizes | 24″ x 24″ (610 mm x 610 mm) / 24″ x 48″ (610 mm x 1219 mm) |
| Edge Detail | Square lay-in or regular tegular (1/4″, 3/8″, 1/2″ reveal) |
| Color / Finish | Factory-applied white, scrub-resistant coating; repaintable with latex |
| NRC (ASTM C423) | 5/8″: 0.60; 3/4″: 0.70 |
| Ceiling Attenuation Class | CAC 35 (5/8″) / CAC 37 (3/4″) |
| Thermal Resistance | R-2.1 (5/8″) / R-2.5 (3/4″) |
| Fire Rating | Class A (ASTM E84); UL listed for fire-resistive assemblies |
| Mold Resistance Score | ASTM D3273: 10; ASTM G21: zero growth |
| Antimicrobial Contact Kill | >99.9% reduction of Staph. aureus and E. coli (JIS Z 2801) |
| Maximum Operating Humidity | Continuous 95% RH without sagging or delamination |
| Recycled Content | Pre-consumer: 38% / Post-consumer: 12% |
The Mold Resistant Mineral Ceiling Board installs seamlessly into standard 15/16″ and 9/16″ T-grid suspension systems, requiring no special tools beyond those used for conventional ceiling panels. Its square and tegular edge options fit both classic and contemporary interiors, while the factory-cut dimensional precision ensures tight joints that discourage moisture ingress. Maintenance involves only occasional dry dusting or wipe-downs with mild detergent — the surface will not peel, chalk, or lose its antimicrobial effectiveness even after thousands of cleaning cycles. By combining these robust physical attributes with proven mold and moisture defense, the board extends the service life of the entire ceiling system and helps building owners meet stringent health and safety guidelines without repeated remediation costs.
