The outer entrance door can be safely called the «face» of the owner or mistress. After all, having come to your house, she will be the first to see your guests or relatives. In addition, it belongs to the elements of the facade of the entire building and must correspond to the chosen style of the originally chosen, and indeed it simply likes its owners. This is all regarding the aesthetic side of the issue. But in terms of convenience and qualitative characteristics, a large number of requirements are presented to the outer entrance doors. They should be durable, reliable and safe, have increased thermal protection and soundproofing properties. Due to their location in the building, they are constantly subjected to precipitation, sunlight, winds, which means that they should be made of wear -resistant materials that will help to avoid damage.