Brief Description:Rock wool board for metal roofing systems has A1 non-combustible performance, high compressive strength and excellent water repellency. It provides stable thermal insulation, rain and hail noise reduction and corrosion protection for steel structures. Custom sizes and multiple facings for workshop and warehouse metal roof projects.

Haochen Stone Wool Board for Metal Roofing Systems is manufactured from high-purity basalt fibres via high-temperature melting, forming a three-dimensional network of randomly orientated fibres before curing. The finished slab delivers excellent structural integrity, dense texture, low fibre shedding and resistance to pulverisation. Its high-density rigid structure offers high compressive strength; the board resists compression deformation and delamination under foot traffic during routine rooftop maintenance, retaining consistent insulation thickness across its long service life.

Performance Advantages — Stable Structure, Thermal Insulation and Sound Absorption, Weather Resistance and Moisture Protection The board is treated with a throughout-mass hydrophobic agent, delivering dependable water-repellent performance to resist the ingress of water vapour and condensation within roof assemblies. It prevents moisture uptake and the subsequent degradation of insulation performance, and reduces corrosion risks for steel purlins and the underside of metal roof sheets.

The porous fibre structure effectively attenuates impact noise generated by rain and hail striking metal roof panels. Its consistently low thermal conductivity delivers heat insulation in summer and heat retention in winter, significantly reducing building energy consumption. A single layer of this board provides thermal insulation, sound absorption and weather resistance in one product.

Compliance and Reliability — Class A1 Fire Rating, Full Compliance with Engineering Standards Haochen Metal-Roof Stone Wool Board achieves Class A1 non-combustible performance. When exposed to high temperatures and fire, it produces no molten droplets or toxic smoke, providing effective passive fire protection for steel-structure metal roofs and enhancing the overall fire safety of the roof assembly.

All core technical indicators, including thermal insulation, fire resistance, hydrophobicity, sound absorption and ageing resistance, satisfy the relevant energy-saving and fire-safety requirements for steel-structure roofs of industrial workshops, warehouses and large public buildings. The product is suitable for project tendering, final-acceptance inspection and third-party testing, with broad engineering applicability.

Supply and Technical Support — Factory Supply, Customisation Available, Full-Process Technical Support Haochen operates dedicated production lines with controlled manufacturing parameters for metal roof insulation products. Stable batch parameters ensure minimal deviation in product performance. Standard-size boards are held in stock. Custom density, thickness and facings including aluminium foil and fibreglass cloth can be supplied to meet project-specific requirements.

Every batch undergoes pre-delivery inspection. Test reports, technical datasheets and installation instructions are supplied with each order. Full-cycle technical support is available, covering material selection, system design and on-site construction assistance, to ensure the long-term safety, stability and durability of the complete metal roof insulation system.

Technical Data Sheet

Note: The above values are for reference only. Actual values shall be confirmed against the official test report issued by the recognised laboratory.