Application of Rock Wool Board Insulation System at China Eastern Airlines Base, Beijing Daxing International Airport
Project: Application of Rock Wool Board Insulation System at China Eastern Airlines Base, Beijing Daxing International Airport
Project Name: Application of Rock Wool Board Insulation System at China Eastern Airlines Base, Beijing Daxing International Airport
Location: China Eastern Airlines Base, Beijing Daxing International Airport (Cargo Terminal, Auxiliary Production Facilities, etc.)
Construction Period: 2018–2019
Applied Product: High-performance rock wool board
Quantity Used: Approximately 180,000 m³
Application Areas: Cargo terminal external wall insulation, roof insulation of auxiliary facilities, equipment pipeline insulation, and fireproof isolation belts
▶ Project Background
Beijing Daxing International Airport, a national strategic project endorsed by the Central Government and the State Council, embodies the principles of “Safe, Green, Smart, and Humanistic.” The construction required the highest standards in energy efficiency, fire safety, and environmental protection of materials. As an essential part of the airport, the China Eastern Airlines Base facilities (cargo terminal, maintenance hangar, etc.) needed to meet:
1. High fire safety standards: With high occupancy and fire load in cargo storage areas, insulation materials had to be Class A non-combustible.
2. Efficient thermal insulation: Beijing’s hot summers and cold winters demanded reduced building energy consumption, meeting the 3-star Green Building Design standard.
3. Durability and stability: Long-term airport operation required materials with no deformation, detachment, or performance degradation over decades.
4. Environmental and health requirements: Materials needed to be non-toxic, harmless, and meet indoor environmental health standards.
✨ SUNTHERM Solution
1. Tailored material selection and design:
- External wall insulation: High-density rock wool boards (≥140kg/m³, tensile strength ≥10kPa), Class A1 non-combustible, thermal conductivity ≤0.040 W/(m·K).
- Roof insulation: Hydrophobic rock wool boards (water repellency ≥99%), preventing water penetration and ensuring long-term insulation.
- Fireproof isolation belts: Installed in key cargo terminal areas to prevent fire spread.
- Pipeline insulation: Pipe-shaped and arc-shaped rock wool products for special equipment.
2. Special installation techniques:
- Base cleaning and alignment, precise positioning using leveling tools.
- Bonding and anchoring: Strip-adhesion method + anchor bolts, ensuring firm attachment.
- Alkali-resistant fiberglass mesh: Embedded in mortar for crack resistance.
- Waterproof detailing: Extra sealing around windows, doors, and pipe penetrations.
3. Integration with other systems:
- Linked with BIM (Building Information Modeling) for digital management of layout, quantities, and installation simulation.
- Coordinated with metal curtain walls and glass façades for airtightness and flatness.
✅ Project Highlights
| Indicator | Traditional Materials | Rock Wool Board Solution | Improvement |
| Fire safety | Class B1, hardly combustible | Class A1, non-combustible | Fundamental improvement, meeting strict airport standards |
| Thermal conductivity | 0.045–0.055 W/(m·K) | ≤0.040 W/(m·K) | ~20% better insulation |
| Durability | 15–20 years | ≥25 years (expected) | Longer maintenance cycle |
| Environmental | May contain formaldehyde | Non-toxic, recyclable | Better indoor quality |
| Construction efficiency | Weather-dependent | Dry installation | Shorter schedule |
▶ Achievements
1. Outstanding fire safety: Class A1 non-combustibility greatly enhanced passive fire protection.2. Energy efficiency: 15%+ energy savings annually, significant carbon emission reduction.
3. Noise reduction: Rock wool’s porous structure improved acoustic comfort.
4. Durability: Moisture and aging resistance solved traditional insulation issues, reducing maintenance costs.
✅ Project Outcomes
- Successfully passed fire safety inspection with no risks.
- Building energy efficiency improved by 15%+.
- Lower lifecycle costs thanks to reduced maintenance and energy savings.
- Environmentally friendly: recyclable, CFC/HCFC-free, made from natural rock.
- Social benefit: Demonstrates best practice for high-standard public infrastructure projects.
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★ Project Summary
The use of SUNTHERM rock wool board insulation system at Beijing Daxing International Airport’s China Eastern Airlines Base achieved safety, energy efficiency, environmental friendliness, and durability, perfectly matching the airport’s “Four Projects” and “Four-Type Airport” vision. This large-scale application in a landmark public facility sets a valuable reference for future infrastructure projects and highlights SUNTHERM’s leadership in material innovation and green construction.
