On May 12, 2023, the quality of PETRALANA mineral wool was confirmed by another certificate – Type III Environmental Product Declaration, issued by Instytut Techniki Budowlanej in Warsaw.

The certificate confirms the correctness of the data included in the Type III Environmental Declaration and compliance with the requirements of the EN 15804+A2 standard, which defines the requirements and rules for the preparation of type III environmental declarations of any product and construction service.

Certificate No. 453/2023 of the Type III Environmental Declaration certifies our products for a period of 5 years - until May 2028.