A 40mm tongue and groove translucent polycarbonate system created especially for use with translucent partitions. The secondary glazing has become all put in and looks wonderful but most of all, no less than for me, the noise insulation is amazing. We have not too long ago installed Clearview Secondary glazing https://precisioneyebrowtweezers07887.atualblog.com/40919574/the-smart-trick-of-noise-reduction-that-no-one-is-discussing