In November 2022 Sament Group finished the sky light roof reconstruction on the Factory of Ideal Standard in Bulgaria. That Reconstruction was done without cutting of the production in it. The existing Sky Lights/ 20 years old/ was replaced with new one from Sament Group production line: Glos DL BT EXT, combined continuous roof light, based on 20 mm PC in horizontal and 16 mm PC in bended position. Glos SV DV, flap for natural daily ventilation integrated in sky lights. The total unit is with improved energy saving and total value of 0,9 W/m2. K coefficient of thermal transition. The Project is provided with 3 years maintenance contract.