Why is calcium sulfate raised flooring more suitable for high-standard computer rooms?

Calcium sulfate raised floors have become the preferred choice for high-standard server rooms—especially in financial centers, supercomputing facilities, and core data centers—because they can systematically and reliably meet the "certainty" and "extreme reliability" requirements of such environments. The following analysis explores the advantages across multiple dimensions:

1. Superior Load-Bearing and Stability Beyond Standards

High-standard server rooms are densely packed with expensive equipment (e.g., fully configured server cabinets, storage units, large UPS systems), placing strict demands on floor load capacity.

• Exceptional Load Capacity: The dense calcium sulfate core supports uniform loads (≥12.5 kN/m²) and concentrated loads (≥25 kN), far exceeding national CZ heavy-duty standards, easily accommodating heavy cabinets and future equipment upgrades.

• Outstanding Dimensional Stability: Almost unaffected by temperature and humidity variations, these floors maintain permanent flatness in controlled, constant-temperature environments, critical for precise equipment installation, preventing cabinet doors from jamming, and ensuring cold aisle containment.

2. Unmatched Fire Safety Rating

Server rooms are high-risk areas for electrical fires, making fire protection vital.

• A1 Non-Combustible Material: Calcium sulfate substrate will not burn, providing the highest level of passive fire protection for critical areas.

• Structural Fire Resistance: Maintains integrity for extended periods during a fire, giving fire-fighting systems and personnel more time while protecting valuable cables and conduits beneath.

• Low Smoke & Halogen-Free: Does not emit significant toxic smoke when exposed to fire, reducing secondary damage and preventing equipment corrosion.

3. Outstanding Moisture and Static Protection

Even in tightly controlled server room humidity, unforeseen risks must be mitigated.

• Inherent Moisture Resistance: Calcium sulfate crystals do not absorb water. Even if air conditioning leaks or short-term humidity spikes occur, the floor core does not swell, soften, or lose strength, eliminating catastrophic risks of floor collapse or equipment tipping.

• Stable, Long-Lasting ESD Performance: High-quality HPL or PVC surface finishes provide reliable static dissipation (resistance typically 10^6–10^9 Ω), protecting sensitive electronics from static interference and damage.

4. Precision Integration with HVAC Airflow Management

High-standard server rooms typically use hot/cold aisle containment and underfloor precision air conditioning systems, demanding excellent plenum performance from the floor.

• Exceptional Flatness and Sealing: Tight joints and a stable, sealed plenum ensure uniform, leak-free cold airflow to cabinet fronts, forming the physical basis for energy-efficient cooling (lower PUE).

• Superior Flexural Stiffness: Even at large panel spans (e.g., 600×600 mm or larger), the floor center does not sag, maintaining consistent plenum height and stable, controllable airflow.

5. Eco-Friendly and Long Lifecycle

• Formaldehyde-Free and Safe Air Quality: The core material and manufacturing process are non-toxic, ensuring high indoor air quality and safe long-term working conditions, while also aiding equipment cooling.

• Durability and Low Total Cost of Ownership (TCO): Extremely stable physical and chemical properties ensure a lifespan exceeding 20 years with minimal maintenance. Although the initial investment may be higher than ordinary floors, its reliability, safety, and maintenance-free characteristics make its total cost of ownership the lowest over its lifecycle.