40-200 Kg/M3 Density Rock Wool Board Thermal Insulated 30mm-150mm Thickness

Product Specification

High Thermal Insulation Rock Wool Boards Cutting Energy Costs Effectively

With excellent thermal insulation performance, rock wool boards have become key materials for cutting energy costs in construction. Their core logic lies in blocking heat transfer and exchange to reduce energy loss between indoor and outdoor spaces, thereby lowering the operating load and energy consumption of heating and cooling equipment. The details are as follows:​

Blocking Heat Transfer to Reduce Heat/Cold Loss​

Rock wool boards have a porous structure formed by interwoven fine fibers. The static air stored in these tiny pores effectively hinders heat conduction—their thermal conductivity is typically as low as 0.036-0.044 W/(m·K), much lower than that of traditional wall materials. In winter’s low outdoor temperatures, rock wool boards act as insulation for exterior walls and roofs, preventing indoor heat from spreading outdoors and reducing the energy input required by heating systems to maintain indoor temperatures. In summer’s high temperatures, they block outdoor heat from entering indoors, lowering the cooling load of air-conditioning systems. For a 100㎡ residence in cold northern China, using rock wool boards for exterior wall insulation can reduce winter heating energy consumption by 30%-50%, saving hundreds of yuan in gas or electricity bills monthly.​

Stabilizing Indoor Temperatures to Reduce Equipment On-Off Frequency​

Traditional buildings with poor insulation see large indoor temperature fluctuations with outdoor conditions—temperatures rise during winter days but drop rapidly at night, and are sweltering at summer noon but cool at night. This causes frequent on-off cycles of heating or cooling equipment. The energy consumption during equipment start-up is much higher than during normal operation. Rock wool boards’ insulation performance effectively stabilizes indoor temperatures, keeping them within a relatively constant range. Equipment no longer needs frequent on-offs, operating efficiently under stable loads. This not only extends equipment service life but also significantly reduces unnecessary energy consumption. For example, after using rock wool boards for ceiling and exterior wall insulation in commercial office buildings, the daily operation time of air-conditioning systems can be shortened by 2-3 hours, cutting annual electricity consumption by about 20% and reducing corresponding energy costs substantially.​

Adapting to Diverse Building Scenarios for Full-Scenario Energy Savings​

Rock wool boards’ insulation performance suits various scenarios like residences, commercial buildings, and industrial workshops, targeting energy reduction in different settings. In residences, besides exterior wall and roof insulation, they can be used as insulation for underfloor heating to reduce heat conduction to the ground and improve heating efficiency. In commercial buildings, large spaces and high foot traffic lead to high heating/cooling demands; rock wool boards’ efficient insulation reduces air-conditioning energy waste, while their sound absorption lowers equipment noise and enhances comfort. In industrial workshops, especially those requiring constant temperatures, rock wool boards help maintain stable indoor temperatures, reducing high energy consumption of industrial air-conditioning and aiding enterprises in controlling energy costs in production. Additionally, rock wool boards have good durability, meaning one installation provides long-term insulation and energy-saving effects without frequent material replacement, further reducing the overall energy and maintenance costs of buildings in the long run.

Comparison of Several Construction Marerials