Boost your confidence in specifying polyiso roof insulation with PIMA's QualityMark Program, a third-party sampling and testing program for thermal performance. QualityMark allows manufacturers like us to obtain third-party certification of long-term thermal resistance (LTTR) values for polyiso roof insulation products independently selected from manufacturing locations. Recent updates incorporated new requirements and increased the frequency of insulation sampling and testing. Discover more at: https://ow.ly/E8hh50TIOGF.