Highly Efficient And Energy-saving Building Insulation Rock Wool Board Core Material

1. Product overview

The core material of rock wool board is a high-performance inorganic fiber insulation material made of natural basalt through high-temperature melting, centrifugal fiberization, molding and pressing. It has excellent heat insulation, fire prevention, sound absorption, corrosion resistance and other characteristics. It is widely used in construction, industrial equipment, transportation and other fields. It is an indispensable core material for green energy-saving buildings.

The fiber structure of rock wool board is dense and porous, forming a large number of air layers, which effectively prevents heat conduction and helps the building maintain temperature stability. As a non-combustible material, rock wool board plays an important role in fire prevention and control to ensure the safety of buildings and personnel. At the same time, the environmentally friendly, non-toxic, durable and stable performance meets the requirements of contemporary green building standards.

2. Product performance advantages

①Excellent thermal performance

The thermal conductivity is as low as 0.034 W/(m·K), which is much better than traditional foam plastics, glass wool and other materials.

The porous fiber structure forms an air barrier to effectively block heat conduction.

The thermal insulation performance is stable and suitable for a wide temperature range of -200℃ to 700℃.

②Excellent fire safety performance

It is a national Class A non-combustible material with a fire resistance temperature of more than 700℃.

It does not burn or release harmful gases when a fire occurs, which greatly ensures the safety of the building.

It is suitable for places with high fire protection requirements such as high-rise buildings, subways, tunnels, and ships.

③Significant sound absorption and noise reduction effect

The porous structure absorbs sound fluctuations and effectively reduces noise propagation.

It is suitable for places that require a quiet environment, such as hospitals, schools, office buildings, and industrial plants.

④Mechanical strength and durability

Through the optimization of the pressing process, it has high compressive strength and stable mechanical properties.

It does not absorb water, corrode, or mildew, and has a service life of more than 30 years.

Resistant to freezing and thawing, resistant to climate change, and adaptable to various harsh environments.

⑤ Environmentally friendly and healthy

No formaldehyde, no volatile organic compounds (VOCs), in line with international green environmental standards.

Recyclable, with extremely low pollution in the production and disposal process.

3. Technical parameters

Performance	Unit	Core Slats	Rockwool Core Board	Testing Standards
Core slat compressive strength (parallel to fibre direction, kPa)	kPa	≥60		GB/T 25975
Tensile strength of core slats (parallel to fibre direction, kPa)	kPa	≥100		GB/T 25975
Slag ball content	%	<5 (Coarse slag ball size > 0.25mm) <30 (Fine slag ball size > 63)		GB/T 25975
Thermal conductivity of rock wool core board (20°C)	W/m.k	≤0.040		GB/T 10295
Thermal conductivity of core slats (25°C)	W/m.k	≤0.046		GB/T 10295
Combustion performance	/	Non-combustible material		GB/T 5464-1999
		Fire response level A1		GB/T 8624-2006
Refractory limit	h	Depending on the construction and thickness of the sandwich panel, the fire resistance limit varies from 1 to 2 hours.		GB/T 9978
Hygroscopicity	%	<1		GB/T 5480.7
Ageing Expansion Rate	%	≤5		PREN 14509
Melting temperature	℃	＞1000		-

4. Main application areas

Building exterior wall insulation system

Rock wool board is used as the core material for exterior wall insulation to improve the energy-saving effect of buildings, reduce heat exchange, and reduce building energy consumption. Its non-combustibility ensures the fire safety of exterior walls and meets various green building specifications and energy-saving standards.

Roof and floor insulation

Block solar radiation heat, reduce roof heat load, prevent heat loss, extend the life of roof and floor structures, and improve living and use comfort.

Industrial pipeline and equipment insulation

Used for industrial steam pipelines, kiln equipment, cooling systems, etc., to reduce heat loss, improve energy utilization, and help industrial energy conservation and emission reduction.

Sound insulation and noise reduction

Used for wall sound insulation and ceiling sound insulation to improve indoor sound environment, suitable for office buildings, medical institutions, educational facilities, etc.

Transportation field

Ship, subway, high-speed train insulation and fireproof materials to improve the safety and comfort of transportation.

5. Production process

The production of rock wool board core material mainly includes the following steps:

(1) Raw material pretreatment

Select high-quality basalt ore, crush and screen to ensure the particle size and purity of the raw materials.

(2) High-temperature melting and fiberization

The ore is melted in a high-temperature furnace (about 1600-1800℃) and made into fibers by centrifugal blowing.

(3) Molding and pressing

The fibers are collected into a blanket and pressed into shape by a mold to control the thickness and density.

(4) Heat treatment and shaping

The fiber blanket is cured at high temperature in a drying furnace to improve the mechanical strength and stability.

(5) Cutting and packaging

The finished rock wool board is cut according to customer specifications and packaged and shipped after passing the inspection.

6. Construction Guide

Storage and Transportation

Store in a dry and ventilated environment to avoid rain and moisture.

Stack neatly to prevent deformation under pressure.

Installation and Fixing

Use special anchors and adhesives to ensure stability.

Avoid construction in windy or rainy days to prevent materials from getting damp.

Use sharp tools when cutting and wear protective equipment to prevent fiber flying.

Protection Measures

Cover the protective layer after installation to avoid mechanical damage and exposure.

Keep the construction site clean to prevent dust inhalation.

7. Industry Standards and Environmental Certification

Comply with national standards such as GB/T5480 and GB/T11835 to ensure product quality.

Obtained ISO9001 quality management system certification.

Passed European CE certification and complies with EU building material safety standards.

The product meets the requirements of green building evaluation systems (such as LEED and BREEAM) to help green building projects.

8. Market trends and technological innovation

Energy conservation and environmental protection continue to drive market growth

As global climate policies become stricter and building energy conservation requirements increase, the demand for rock wool board core materials continues to rise. Government support policies and financial subsidies for green buildings have promoted the popularization of high-performance insulation materials.

Technology upgrades bring better performance

High-density and high-strength rock wool boards adapt to high mechanical load environments.

The application of nanotechnology improves insulation efficiency and durability.

Automation of production processes achieves product consistency and large-scale high-quality manufacturing.

Intelligent manufacturing and digital management

Using the Internet of Things and intelligent detection technology, real-time monitoring of the production process is achieved to ensure stable product parameters and meet high-end market needs.

FAQ

Q1: What types of buildings are rock wool board core materials suitable for?

A1: Applicable to a variety of building types such as residential, commercial buildings, industrial plants, high-rise buildings, public facilities and transportation.

Q2: What is the waterproof performance of rock wool boards?

A2: The rock wool board itself has a low water absorption rate, but it is recommended to use it with a waterproof layer in areas prone to moisture to avoid a decrease in insulation performance.

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