EN 622-4 Fiberboards - Requirements for Softwoods

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 622-4 testing. This standard specifies the requirements for softwoods with a density between 316 kg/m³ and 230 kg/m³, as defined in EN 400.

The values ​​listed in this standard relate to product characteristics but are not characteristic values ​​to be used in design calculations.

EN 622-4 is a European standard that specifies requirements for softboards, a type of fiberboard typically made from low-density wood fibers or other vegetable fibres. Softwoods are often used as insulation material in construction and other applications.

Chapter 4 of the standard, "Requirements for softwoods", provides detailed specifications for softwoods with a density of less than 500 kg/m³. These requirements cover various properties of sheets such as thermal conductivity, compressive strength, water absorption and dimensional stability.

Some of the key requirements outlined in EN 622-4 include:

• Thickness and density: The standard specifies minimum and maximum thickness and density requirements for softwoods;
• Thermal conductivity: Softboards should have a thermal conductivity of 0,040 W/(m K) or less;
• Compressive strength: EN 622-4 specifies the minimum requirements for the compressive strength of softwoods, which vary depending on the density of the boards;
• Water absorption: The standard includes requirements for softwoods to absorb water under various conditions, such as immersion in water or exposure to high humidity;
• Dimensional stability: EN 622-4 contains requirements for the dimensional stability of softwoods under various conditions such as changes in temperature and humidity.

In general, EN 622-4 aims to ensure that softwood products meet certain minimum quality and safety standards and provides guidance for manufacturers, distributors and end users of these products.

EUROLAB assists manufacturers with EN 622-4 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.