Winter gardens are becoming more and more popular decorative elements of houses and resting places. It is the aluminum envelope which is an additional room of a building. It is obvious that in order for a place to be suitable for taking a rest after a hard day at work, it must be professionally constructed and meet all the aesthetic requirements of its users. In order to cope with all these aspects, our company uses the highest quality winter garden systems. A winter garden can be designed and built as an all year round living space, or as an additional veranda on cold profiles. The roof plane may be constructed with the use of various facade structural sections. The whole can be supported on facade mullions, window and door mullions, which are specially reinforced. The advanced system of roof rafters allows the use of standard glazing beads from window and door systems. The system of glass gardens is available in two variants, in the first one the supporting profiles, the so-called rafters, are shaped from the outside of the room in the form of an inverted profile, while in the second variant the rafters are shaped from the inside of the room as box profiles. The base width of the rafters is 60mm, depending on the size of the roof and garden they are increased or strengthened. The rafters are combined with hinge profiles that are supported on the eaves or ridge beam, which makes it very easy to drain water and allows for good ventilation of the room. This winter garden system ensures very good thermal insulation and strength of aluminum profiles thanks to the use of special chamber thermal breaks and EPDM membranes. Garden glazing occurs in the range of 20-40mm.