The EN 12664 standard, a European standard, describes the requirements and defines the test methods for determining the thermal resistance of test specimens conditioned in dry state or in equilibrium with humid air, using protected hot plate or heat flow meter methods, provided that these specimens have thermal transmittance or thermal conductivity values not less than certain values.
The thermal conductivity coefficient of a material is the amount of heat transmitted per second from a unit area of a unit thickness plate when the temperature difference between its ends is 1 K.
Today, within the scope of combating global warming and climate changes, the issue of insulation has become very important for reasons such as energy saving, comfort conditions and reducing greenhouse gas emissions, be it residences or industrial buildings. All over the world, it is now considered essential to determine the thermal loads of the buildings depending on the changing climatic conditions and to make the necessary thermal insulation according to the conditions in terms of efficient use of energy. Thermal insulation has been made compulsory by the developed national and international standards.
In modern building design, the calculation of thermal resistance values for roofs and walls relies effectively on the thermal conductivity coefficient of insulation materials. However, in addition to the thermal conductivity coefficient, it is also important to determine the thermal emissivity, specific heat, and similar thermal properties of the insulation material used.
In advanced laboratories, the thermal conductivity coefficients of insulation materials are determined by two different methods:
These measurements are made at 20 degrees Celsius.
Our organization, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, with its trained and expert staff and advanced technological equipment, within the scope of EN 12664 standard, thermal performance of building materials and products, protected hot plate and heat flow meter methods. It also provides testing services for dry and moist products with medium and low thermal resistance for the determination of thermal resistance.
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