Validity period of certificate IRMM-440 prolonged
17 January 2019We were able to prolong the validity of the certificates of IRMM-440A, IRMM-440B, IRMM-440C and IRMM-440D. This prolongation is based on data provided by Rockwool International A/S that demonstrated that, given that the material is handled with care, is not mechanically damaged or subjected to undue pressure, the thermal conductivity remains unchanged for a period of 18 years or 200 measurement cycles.
Customers of the past five years were informed with a special letter.
« Back to overview