Pre Insulated Duct

The KOOHSARAN pre insulated panel is manufactured of CFC free closed cell polyisocyanurate foam with an 80 micron aluminum foil facing on both sides, or a 80 micron facing on one side and 200 or 500 microns aluminum foil in the other. The panel thickness is 20mm or 30mm with foam density of 45-50kg/m3 (2.8-3.0 lb/ft3) and thermal conductivity of 0.022 w/wC at 10c (k=0.153 BTU in ft2h F).