Brief Description:Full-range A1 non-combustible rock wool boards cover general building, high-density external wall, aluminium foil faced and high-strength metal roof panels. With customizable sizes, stable performance and high cost performance, they provide reliable insulation solutions for building facades, HVAC ductwork and steel structure projects.

Haochen Thermal Insulation is a professional manufacturer of rock‑wool boards. We produce diverse series and multi‑specification rock‑wool insulation products custom‑tailored for different construction scenarios, application sectors and engineering requirements. With long‑term engagement in industrial thermal insulation, building fire protection, noise reduction and energy‑saving fields, the company has accumulated abundant experience in project implementation and production support. Our rock‑wool boards are man‑made inorganic fibre insulation materials. Boasting wide applicability, favourable cost‑performance and reliable compliance, they are A1 non‑combustible fire‑resistant insulation materials widely adopted in local projects, capable of meeting the requirements for most building and industrial operating conditions.

Many buyers tend to confuse different categories of rock‑wool boards during procurement, resulting in improper product selection and unnecessary cost losses. According to manufacturing processes, product densities and practical applications, mainstream rock‑wool boards on the market fall into four core categories, covering working‑condition requirements for the vast majority of engineering projects. Below is a detailed overview of product features and applicable scenarios to support accurate product selection matching your project demands.

1. General‑Purpose Building Rock Wool Board

The general‑purpose building rock‑wool board is a bulk basic insulation product, with a standard density of 80‑100 kg/m³ and optional thickness ranging from 30 mm to 100 mm. Taking industrial slag as the primary raw material, it is formed through high‑temperature melting, centrifugal fibre formation and high‑pressure compression. The board delivers uniform texture, good toughness and stable overall structure.

It features outstanding basic thermal insulation, sound‑absorbing noise‑reduction and flame‑retardant performance. Classified as A1 non‑combustible under national standards, it releases no toxic fumes and generates no molten drips when exposed to fire, which makes it safe and eco‑friendly. It is mainly applied for internal‑wall insulation of ordinary workshops, noise reduction for indoor partitions, ceiling sound insulation, ventilation duct insulation, building cavity filling and basic noise control in plant rooms and other conventional working conditions. Thanks to its high cost‑efficiency and great versatility, it acts as an essential insulation panel for civil buildings and small‑to‑medium‑sized industrial projects.

2. High‑Density Rock Wool Board for External Walls (for External Thin‑Coat Render Construction)

The high‑density rock‑wool board for external walls is a high‑standard engineering‑specialised panel with a standard density of 140‑160 kg/m³. Specially developed for external thermal insulation of high‑rise buildings and curtain‑wall insulation systems, it is a dedicated fire‑resistant insulation material suitable for external‑wall thin‑coat render construction technology.

Made of premium basalt as the core raw material, the product owns fine and compact fibre structure. Compared with ordinary rock‑wool boards, its compressive and tensile strengths are greatly improved. It exhibits excellent wind‑pressure resistance, deformation resistance and water‑repellent performance, and can withstand harsh open‑air external‑wall conditions such as long‑term solar exposure, alternating seasonal temperature shifts and wind‑rain erosion.

Fully complying with specifications for external‑wall thermal insulation and fire‑safety acceptance, it maintains long‑lasting stable thermal‑insulation performance and effectively eliminates potential safety hazards including hollowing, falling‑off, performance degradation and fire spread of external‑wall insulation layers. It is widely used for external‑wall fire‑proof insulation projects of high‑rise residences, commercial complexes, office buildings and prefabricated buildings, and serves as a mainstream compliant panel for current external‑wall fire‑protection insulation projects.

3. Aluminium‑Foil Faced Rock Wool Board

The aluminium‑foil faced rock‑wool board is a composite insulation panel produced by laminating heavy‑duty aluminium‑foil facing onto the surface of standard rock‑wool substrate. Either general‑purpose insulation rock‑wool boards or high‑density external‑wall rock‑wool boards can be flexibly chosen as substrates for composite processing based on actual project conditions. Compatible with the two main board types, it enjoys extensive applicable scenarios and exceptional versatility.

Adopting professional spray‑adhesive composite technology, uniform glue distribution achieves firm bonding between aluminium‑foil facing and rock‑wool substrate. While fully retaining the core properties of rock‑wool substrate including A1 non‑combustibility, thermal insulation and sound absorption, the aluminium‑foil facing greatly enhances the panel’s capabilities of water resistance, anti‑condensation, thermal‑radiation reflection and corrosion resistance. It thoroughly addresses common drawbacks of bare rock‑wool boards: poor moisture resistance, susceptibility to water absorption under humid conditions, performance degradation and shortened service life.

Adaptable to various complex damp working conditions, it is extensively utilised for glass curtain walls, dry‑hang stone external walls, industrial‑equipment insulation, various process pipe insulation, central‑air‑conditioning ducts, smoke‑exhaust ducts, underground car parks, chemical workshops and plant rooms. Integrating fire resistance, thermal insulation, noise reduction, moisture‑proof and anti‑corrosion performance, it features strong weather resistance and stable operation, and is the preferred fire‑resistant insulation material for humid environments and HVAC duct systems.

4. High‑Strength Load‑Bearing Rock Wool Board for Metal Roof Systems

The high‑strength load‑bearing rock‑wool board for metal roof systems is a high‑strength special‑purpose panel developed for thermal‑insulation and fire‑protection systems of metal roofs, metal sandwich panels and steel‑structure roofs, with a standard density of 160‑180 kg/m³. Using premium basalt as the main raw material, it is manufactured by high‑temperature melting, high‑speed centrifugal fibre spinning and high‑pressure curing. It has compact fibres, high rigidity and robust integrity. It delivers excellent compressive, tensile and wind‑uplift‑resistance performance, and can endure long‑term roof loads, drastic temperature changes and wind‑rain erosion. Unlike soft ordinary rock wool, this product resists loosening and fibre shedding, and sustains stable dimension and load‑bearing performance after installation.

Meeting fire‑protection and thermal‑insulation requirements for metal roof systems, it can effectively inhibit fire spread, sustain steady thermal‑insulation performance and avoid risks such as settlement, collapse and fire‑protection failure of insulation layers. It is widely applied to thermal‑insulation and fire‑protection projects for metal roofs and metal sandwich panels of industrial workshops, logistics warehouses, commercial complexes, sports venues, cold stores and prefabricated buildings, suiting various high‑standard steel‑structure construction projects.

5. Why Select Haochen for Rock‑Wool Board Procurement

As a professional rock‑wool‑board manufacturer, Haochen Thermal Insulation possesses a mature and complete production system with comprehensive product ranges and abundant specifications. We conduct custom production and processing according to different sectors and working conditions, covering full‑series products: general basic insulation rock‑wool boards, high‑density external‑wall rock‑wool boards, curtain‑wall‑special rock‑wool boards, aluminium‑foil composite rock‑wool boards and high‑strength rock‑wool boards for metal roofs. It provides one‑stop solutions covering all thermal‑insulation and fire‑protection scenarios for buildings, HVAC systems, curtain walls, external walls, steel structures and industrial equipment. Whether for conventional civil‑building insulation projects, external‑wall and curtain‑wall fire‑safety projects, or high‑demand working‑conditions such as humid‑environment HVAC and steel‑structure roofs, accurate matching and custom‑made production are available. All series of products adopt mature craft with stable performance. Non‑standard panels with custom thickness and density can be produced as per project requirements, enabling one‑stop multi‑category procurement for engineering projects and helping overseas customers save time, reduce worries and improve cost‑efficiency.