High Quality Sandwich Lightweight Easy Installation Composite Rock Wool Board

• Customization: Available
• After-sales Service: Free Technical Guidance with a 12-Month Warranty
• Feature: Durable, Easy to Install, Fierproof, Flame Retardant, Heat Insulation, Noise Reduction
• Model NO.: Composite Rock Wool Board
• Highest Working Temperature: 550ºC
• Material: Basalt
• Color: Yellow
• Density: 40–200 Kg/M³
• Applications: Building Insulation
• Fire Resistance: >1000°c
• Sound Absorption: Nrc 0.75–0.95
• Transport Package: Cartons/Bags/Pallets
• Specification: Can be customized
• Trademark: zhenmei
• Origin: China
• HS Code: 6806900000
• Package Size: 180.00cm * 60.00cm * 5.00cm
• Package Gross Weight: 1.620kg

Product Description

Product Description

Composite Rock Wool Board

This is the Composite Rock Wool Board, is commonly used in construction and industrial fields of functional materials, the core by the rock wool core material (yellow part, to basalt and other raw materials, made of high-temperature melting fibrosis) and protective surface layer (gray and white part, mostly fiber cement board, calcium silicate board, etc.) composite and become.
Key features 
Thermal insulation: rock wool porous structure of static air storage, low thermal conductivity, can effectively block heat transfer, to help buildings, equipment, energy saving.
Fireproof and flame retardant: rock wool itself is non-combustible, does not flare up in case of fire, and does not release toxic gases, which improves the fire safety of application scenarios.
Sound absorption and noise reduction: the porous structure can absorb and scatter sound waves, reduce the spread of noise, suitable for places with requirements for acoustic environment.
Mechanical stability: the composite surface layer enhances the structural strength, better resistance to pressure and deformation, and is not easy to be damaged in construction and long-term use.

Material Composition	basalt rock and slag	Fire Resistance	A1 or A2
Thermal Insulation	0.035–0.042 W/m·K	Water Resistance	repels water
Sound Insulation	High	Durability	Resistant to aging
Mechanical Strength	High compressive

After-sales service	Free Technical Guidance, 12 Months
Characteristics	Durable,Easy to Install,Fierproof,Flame Retardant,Heat Insulation,Noise Reduction
Maximum working temperature	500°C
Material	Basalt
Transport packaging	Cartons/Bags/Pallets
Trademarks	zhenmei
Place of origin	China
Color	Yellow
Use	Wall
Material composition	basalt rock, slag, and binder
Thermal Conduct	~0.035-0.042 W/m·K
Fire Resistance	>1000°C
Sound Absorption	NRC 0.75-0.95
Water Repellency	Hydrophobic
Density	40-200 kg/m
Applications	Building insulation (walls, roofs),

Main Product

Company Profile

Zhejiang Huahang Thermal Insulation Products Co., Ltd. is a subsidiary under the group, located in Hangzhou, Zhejiang. The company relies on a comprehensive online sales platform and a young, dynamic, trustworthy, and pragmatic sales team, earning the trust and support of customers both domestically and internationally. Our company's main products include: rock wool products, extruded products, fiberglass wool products, rubber & plastic foam products, aluminum silicate products, and more. These products are primarily used in steel structures, wall insulation, pipelines, power plants, and other fields. Our company is a law-abiding and trustworthy township enterprise, a recommended building materials enterprise, and a contract-honoring supplier of insulation materials for China's power industry. We are also recognized as a Hebei Province Technology-Based Enterprise. In 1999, we successfully obtained ISO 9002 Quality System Certification and later achieved ISO 10012 Quality System Certification in the same year. Our company boasts strong technical expertise and is equipped with modern production facilities. We implement scientific management and strictly adhere to technical standards in production. With a commitment to excellent service, we provide a wide range of thermal insulation products to our customers. We offer high-quality products at competitive prices along with reliable service. Your inquiries and purchases are warmly welcomed!

Advantage

Certifications

After Sales Service

Packaging & Shipping

FAQ

1. Which insulation material is best for my home (exterior walls/roof/interior walls)?

Exterior walls: Fireproof Class A rock wool boards or foam cement boards (durable). Roof: XPS extruded boards (waterproof and pressure-resistant) or polyurethane spray (seamless insulation). Interior walls: Lightweight EPS boards or fiberglass wool (space-saving).

2.How are fire resistance ratings classified?

Class A: Non-combustible (e.g., rock wool, foam cement).

Class B1: Flame-retardant (e.g., fire-resistant EPS/PU).

For homes, at least Class B1 is recommended; public buildings require Class A.

3. Are your products eco-friendly?

Do you have test reports? Available certifications: Fire resistance test reports (GB 8624). Eco-labels (e.g., green building materials, formaldehyde emission tests).

4. What is the price per square meter?

Example price ranges: EPS boards: ¥20–40/m XPS boards: ¥40–80/m Rock wool boards: ¥60–120/m (Varies by thickness, density, and brand.)

5. How do I calculate how much material I need?

Formula: Area (m²) × Thickness (cm) ÷ Package volume. Example: For 100m² walls with 5cm EPS boards: 100 × 0.05 = 5m² (confirm package specs).

6. What should I know for DIY installation?

Key steps: Clean the base surface (no dust or grease). Ensure tight seams between boards. Use specialized adhesives and anchors. 

7. How long does the insulation last?

Typically 20–30 years, but note: Organic materials (e.g., EPS) degrade under UV exposure. Inorganic materials (e.g., rock wool) must stay dry. 

8. What if the material gets damaged or detaches?

Warranty coverage (usually 1–5 years) for repairs. Small repairs can use structural adhesive. 

9. Does winter installation affect performance?

In low temperatures (<5°C): Use winter-grade adhesives. Avoid rain/snow during installation.