Swelling and deforming under the influence of moisture and temperature, wooden window profiles can change their shape and size, and Oh, the horror! – That they are cracks through which we are losing precious heat. In addition, the wood has a significant drawback as flammability, reduced the significance of which can be due to special flame retardant impregnations and flame retardants, however, so eco-treated as wood remains a big question. And if we talk about conserving natural resources, cutting valuable wood does not improve the ecological situation and even more so – is able to affect change climatic conditions in the region. Objects made of aluminum, known for its durability and strength, not for nothing that this material is used in the manufacture of aircraft. The same can be said about the windows of aluminum. Such windows will last more than one generation, to the same easy to care for them, and they are resistant to all sorts of negative influences. But aluminum profiles are not without drawbacks, and their main negative – high thermal conductivity.
That is Again – the heat goes out, the energy spent in vain, and the house is cold and uncomfortable. Overcome this problem, please fill in aluminum construction with special foamable polymer compositions, but these 'warm' Aluminum profiles are much more expensive. Another trouble – prone aluminum, that is in contact with other metals (especially copper), it can deform or even collapse. So relationships of aluminum windows with metal gate and turning hardware (handles, hinges, etc.) are very complicated.