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CNProject Name: Battery Plant
Product Specification: 120mm PU-sealed Rock Wool Sandwich Panels
Building in –30°C: How BRD Solved One of Northern China’s Toughest Construction Challenges
In Guyang County, Baotou City—an area known for –30°C winters, Level-8 winds, and frequent sandstorms—constructing a durable industrial facility is no simple task.
For Aviation Ronghe Battery Industrial Co., Ltd., a key project within the region’s emerging energy-storage industry base, the factory demanded an external wall system that could withstand:
A-level fire protection
Extreme thermal insulation performance
Strong resistance to wind, sand, and corrosion
Long-term durability in harsh, dry, cold climates
Traditional wall materials could not meet these requirements.
BRD provided the answer with its 120mm PU-sealed Rock Wool Sandwich Panels, engineered for lightweight performance, modular construction, and all-climate adaptability—setting a new benchmark for cold-region industrial building envelopes.
Three Core Technologies Redefining Industrial External Walls
- The “Golden Triangle”: Galvanized Steel + Polyurethane Sealing + Rock Wool Core
Independent testing by the China Institute of Building Standard Design & Research shows:
Traditional rock wool boards can have up to 12% water absorption
BRD’s PU edge-sealing technology reduces absorption to below 0.8%, ensuring long-term stability
Outer Alu-Zinc Steel Sheet (AZ150g)
UV-resistant, colorfast for 30 years
No rust for 20 years under natural exposure
Excellent protection against wind erosion and sandstorms
PU Edge-Sealing Technology
99% closed-cell structure fully blocks vapor and moisture
Prevents rock wool from absorbing water, maintaining insulation performance even in –30°C environments
120mm Rock Wool Core
Thermal conductivity maintained at 0.041 ± 0.002 W/m·K in extreme cold
Improves insulation efficiency by up to 50%
Reduces energy consumption significantly for large-scale industrial buildings
- Modular Installation for Extreme-Cold Construction
Customized dimensions with ±1mm precision
All panels pre-fabricated and pre-checked at BRD’s smart factory
Enables rapid assembly—30,000 m² completed in just 30 days
Allows uninterrupted installation even at –20°C, solving the biggest challenge of winter construction
- Fire Safety & Sustainability
A-level non-combustible basalt rock wool
No melting, dripping, or toxic smoke during fire
Meets industrial fire inspection and safety compliance
VOC emissions during manufacturing approach near-zero, supporting green construction standards
Why the Client Chose BRD: A New Benchmark for Cold-Climate Industrial Buildings
BRD’s insulated external wall panel solution not only solved the construction challenges in Inner Mongolia but also:
Reduced future maintenance and operation costs by 30%
Shortened project schedule dramatically through modular assembly
Delivered a wall system that remains stable in high winds, low humidity, and sub-zero temperatures
From food processing plants in Auckland, New Zealand, to battery factories in Ordos, China; from logistics hubs in Kenya to electronics manufacturing parks in Vietnam—
BRD’s PU-sealed rock wool sandwich panels have become the “gold standard” for industrial wall cladding across more than 10,000 global projects.
Choosing BRD Means Choosing Long-Term Value
At Aviation Ronghe Battery’s facility, BRD proved that an industrial wall system is more than the “skin” of a building—it is a strategic asset that strengthens energy efficiency, lowers operational costs, enhances safety, and supports long-term sustainability.
BRD continues to lead the future of industrial building envelopes through:
Lightweight and high-performance wall systems
Intelligent manufacturing
Low-carbon, energy-efficient materials
With professional engineering teams, rapid-response production capacity, and advanced automated equipment, BRD provides technology-driven, durable, and practical external wall solutions for industrial plants, commercial complexes, and public buildings worldwide.
