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(주)일신산업

Frequent Questions

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    Low-E Insulation : General purpose Insulation with High reflectivity and low emissivity.
    Fire retardant : Thermal insulation performance is same with Low-E Insulation but fire safety is higher than G/P by adding fire resistant function which can delay spreading speed in fire.
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    According to attached Table 1 (KSF 2277 Thermal perfusion rate test) of Building Energy Saving Design Criteria No. 6-1 Multi-paragraph 2 Insulation Regulation (KSF 2277 Thermal perfusion rate test report issued by KOLAS certification test institution, volume insulation material according to KS L 9016 Thermal Performance test is reported.
    For comparison, based on the attached Table 1, when using £ (submission of thermal perfusion rate of 0.32 W/m3K or less) Roidan Thermal Material 40T (submission of relevant insulation report), the bead method 2 No. 100T [Heat perfusion rate of 0.32 W/m3K] is comparable to 0.1/0.032= 0.32 W/m3K)]
    In other words, apart from apartments in the southern part of the country, if you use 40T of heating materials, the bead method type 2 requires 100T to achieve the same performance.
  • A
    Low-E Insulation is not suitable for KS L 9016 thermal conductivity test method.
    According to paragraph 5.2.1 of KS L 9016 Thermal Conductivity Measurement Method, "In principle, a test specimen is cut from a product or product, but if it cannot be cut, it is recommended to be manufactured under the same conditions as the product. However, the outer skin and other materials are removed."
    Low-E Insulation is a composite bulkhead insulation that combines aluminum and PE foam. If you remove the outer skin or other materials, it will not be a product, but it will only produce the thermal conductivity of each material.
  • A
    The thermal conductivity (flat thermometer method) is a unique characteristic of solid materials and is measured when the temperature difference of 1℃ is moved from high to low (1m distance, 1m2 area) to low temperature.
    The thermal perfusion rate (the insulation performance measurement method of building components - the training thermal box method and the protective thermal box method) is a measure of the building test structure measured when the temperature difference of 1℃ is moved from the anti-temperature side to the low-temperature side through the test structure.
    To see the insulation performance, you need to compare the heat perfusion rate.
  • A
    The report of the detached composition was recognized in the previous building energy saving design standards, but the current building law does not recognize the single report of insulation materials, but only the test report of the same wall composition as the construction site.
    (Refer to the energy saving design standards of the building, the thickness of the air layer shall be the same, but the rest of the materials shall be recognized even if the actual construction thickness increases.)
  • A
    Thermal perfusion rate test report validity period: No
    Semi-incombustible-conformity report validity period: within one year from the date of issuance of the relevant report