Published at Wednesday, June 28th, 2017 - 05:35:17 AM. . By Queen Haley.
They also work to keep out the cold and keep in the heat. And by keeping the warmth in your home, they help lower heating costs. In fact a composite door can retain up to six times as much heat as a wood door does. Meanwhile in summer they keep in the cool and keep out the warmth.
Aluminum skin composite doors are another common variety and are widely used in garages, shops or factories. These doors are very strong and are invincible, in the literal sense of the term. Aluminum composite doors are also used for main entrance in different types of office and hotels. They have glass panels in the middle supported by a strong aluminum frame. The double layers are useful for offices and factories as they are durable and sound proof. They are composed of two layers the first layer is that of aluminum and the second layer is made up of polyurethane foam. A triple layer aluminum composite door is not only durable but also very strong. The first layer is made up of galvanized aluminum the second layer is made up of polyurethane foam and there is another layer of galvanized aluminum.
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