Rockwool Insulation Panels 1200x600mm for Greenhouse Covers

Product Specification

Rock Wool Panels Providing Benefits For Crops As Greenhouse Covers

As a covering or insulation material for greenhouses, rock wool boards effectively address core needs in greenhouse cultivation, such as "temperature stability", "humidity control" and "crop safety". Their core benefits and properties are detailed below based on practical planting scenarios.

Guaranteeing a Suitable Temperature Environment for Crops
Greenhouses need to cope with issues like day-night temperature differences and cold waves. Rock wool boards’ excellent insulation reduces heat loss from the greenhouse at night. For example, in winter, they can keep the internal temperature 3-5°C higher than ordinary film-covered greenhouses, preventing crop frost damage. Meanwhile, they buffer high temperatures caused by intense sunlight in summer; when used with ventilation systems, they maintain a temperature range (15-28°C, suitable for most crops) ideal for growth, minimizing the impact of heat stress on crop flowering and fruiting.

Stabilizing Greenhouse Humidity and Reducing Diseases
Rock wool boards can absorb moisture and release it slowly, avoiding sudden humidity fluctuations inside the greenhouse. For instance, they prevent a sharp humidity increase due to film condensation in the early morning, thereby lowering the incidence of downy mildew and gray mold—common diseases in crops like cucumbers and tomatoes. Additionally, they do not mold or deteriorate after absorbing moisture, eliminating the risk of pathogen growth and further protecting crop health.

Enhancing Greenhouse Durability and Cost-Effectiveness
Compared to traditional straw mats and plastic films, rock wool boards have stronger wind resistance and anti-aging properties. They can last 5-8 years under normal use, eliminating the need for frequent replacement. As a Class A non-combustible material, they also prevent greenhouse fires caused by high temperatures or open flames, reducing planting risks.

Excellent Thermal Insulation
Made by melting and fiberizing minerals like basalt, rock wool boards have a porous fibrous internal structure that effectively blocks heat transfer. With a low thermal conductivity (usually ≤0.044W/(m·K)), they outperform ordinary foam boards. They maintain stable internal greenhouse temperatures over the long term, cutting energy costs for heating in winter and cooling in summer.

Balanced Moisture Absorption and Ventilation
They can absorb excess moisture in the greenhouse (moisture absorption rate: approximately 5%-10%), preventing condensed water from dripping directly onto crop leaves. At the same time, the pores between fibers ensure air circulation, keeping the greenhouse air fresh. This balances the needs of "humidity reduction" and "ventilation", making them particularly suitable for crops that thrive in high-humidity environments, such as strawberries and lettuce.

Strong Physical Stability
Rock wool boards have high compressive strength (≥80kPa) and do not deform easily after being covered or built into structures. They can bear the weight of accumulated rain and snow, preventing greenhouse collapse. Moreover, they are acid- and alkali-resistant as well as corrosion-resistant, so they won’t deteriorate due to chemicals from fertilization (e.g., ammonia volatilized from nitrogen fertilizers) or be eroded by rain and dew, maintaining stable performance over long-term use.

Safety, Environmental Friendliness, and No Harm
High-quality rock wool boards contain no harmful substances like formaldehyde or benzene, nor do they release toxic gases at high temperatures. They won’t contaminate soil or crops, meeting the requirements of green cultivation. Their fibers undergo special treatment to prevent shedding, avoiding quality impacts from fibers falling onto crop leaves or fruits.