IKO enertherm MG is a 100 % CFC, HCFC, and HFC-free insulation board with a core in hard polyisocyanurate foam, laminated on both sides with a perforated coated glass fabric. Application: Rooftop: flat roof insulation for use with bitumen, mastic asphalt, single-ply or or adhesive bonded waterproofing systems. IKO Enertherm MG data sheet