External Roller Shutters

The left roller-blind constitutes additional closing the hole of the building and he is a barrier all at the same time about insulating properties. The stiff polyurethane foam filling up profiles carried out of high-quality alloy with aluminium constitutes the additional thermal insulation. The layer of air created between the left armour of the roller-blind and the window or the door is hampering the exchange of the warm weather between the inside and the outside environment. It allows to save the thermal energy needed for heating rooms, however in hot days he is protecting before exaggerated with heating them.