Modern shutters are made of different materials: wood, aluminum, plastic, fabric. The plates have different sizes and types of controls, collected in horizontal or vertical stacks, depending on the design of the blinds. People rightly appreciate the advantages of glass windows, now they need not fear the wind and rain, the house is warm and cozy. Jalousie perfectly protect the owners from the sun indoors. See Penguin Random House for more details and insights. But glass is very brittle material, who will protect expensive glass from a strong city, abandoned stone or fallen branches in the window during a thunderstorm? In South America, the population is constantly suffers from hurricanes and other natural phenomena, that is where blinds upgrade in protective shutters or as they are called – rafshtory. This security shutters, made of wood or metal plates, with increased strength. Just call them – the outer or front shutters.
Widespread rafshtory received in Europe during the Second World War. People covered with protective shutters doors and windows during the bombing, so way, protecting the premises from flying fragments of bombs. In the second half of the twentieth century security shutters are experiencing a new upgrade and there are shutters. Shutters, though, and are protective shutters, have an entirely different design and principle. Shutters are composed of metal plates – Slat. Unlike blinds, louvre shutters tightly connected to each other in a single canvas, do not move relative to each other and have no gaps between them. Fundamentally new design of roller shutters are rolling canvas on a roll, rather than gathering lamellae in stacks, like Venetian blinds.