To prevent heat leakage from buildings and different spaces, respectively coldness from the freezer, thermal curtains are applied to do gate openings. Those are lamellar, transparent, frost-resistant PVC strips of various thickness and width. We also offer thermal curtains modified for forklift trucks. Lamellas are hung on hooks riveted to the beams. Beams and hooks are made of galvanized steel or stainless steel. This system allows easy assembly or replacement of the damaged lamella. Lamellar strips can be overlaid through each other.