Exterior jalousies and roll-up shutters serve as window protection from external pollutions and damage, undesired sunlight, noise reduction and insure the private sphere of your home. All types of exterior jalousies and roll-up shutters are essential part of modern houses, office buildings and production halls. This design element on your window assures that your home shall be comfortable even during strong gust wind, it will protect your home from direct sunlight, during a rain from window contamination and in winter from cold and snow.