The list of shortcomings polycarbonate much less. These include high coefficient of thermal expansi

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One of the most suitable materials for the construction of roofs, as well as various sheds, gazebos, is considered polycarbonate. As it is the best suitable for the construction of greenhouses. The fact that the roof made of polycarbonate perfectly transmits sunlight and at the same time protects the inside of the building from the effects of rainfall. Why polycarbonate so popular?
This material is a polycarbonate inherent both positive and negative characteristics. However, in practice, the ideal building materials do not exist, and plastic styrofoam blocks is not an exception. To begin, styrofoam blocks let's talk about the positive qualities of polycarbonate.
The positive side of this building material can be no doubt include its light weight and high strength. It has the following properties it due to its cellular structure. With a thickness of only 24 mm, and a cell obreshetok 750h1500 mm cellular polycarbonate can withstand 200 kg per 1 sq. m. This strength is sufficient to withstand the burden fell in the winter snow.
Low thermal conductivity - another indisputable advantage it polikarbonatu.Vlashtovani cell, forming air pockets, allow it to operate on the principle of glass. In addition he has a lower thermal conductivity polycarbonate than ordinary glass, which played a decisive role when used for building greenhouses.
Ideal optical performance. In different circumstances, for example, depending on the color panels, polycarbonate able to change their svetopropusknaya opportunities. The roof is made of this material is able to pass from 11 to 85 percent of light, and in this and scatter sunlight, neutralizing the effect of ultraviolet radiation.
High resistance to mechanical stress and sufficient security operation. Polycarbonate is an excellent material for making armor and protective vandal-proof glass, this is achieved through the ability of a material to withstand heavy shock loads that are almost 200 times higher than the same properties of glass. Moreover, on partitions polycarbonate panels are formed small fragments. All these qualities combined with high fire safety and durability make the material styrofoam blocks very popular.
It should be noted convenient size and material. When you create a roof canopies or other material is often a problem of creating a reliable integrated coating that did not allow to flow. This means that should make many frames, styrofoam blocks the abundance of which primarily affected the appearance of the building. As for polycarbonate, it is virtually devoid of these shortcomings, as the maximum size of a message it sometimes may be 12,000 in length and 1050 in width. Interestingly, weighs a letter at a thickness of 24 mm only 44 kg.
The list of shortcomings polycarbonate much less. These include high coefficient of thermal expansion, low resistance to atmospheric conditions such as hail and low abrasion styrofoam blocks resistance - polycarbonate scratch easily. The process of installing a roof made of polycarbonate
Before the construction of the roof made of polycarbonate, it is important to understand the importance of supporting structure. Even though it is considered a light coating of the roof, yet without the construction of crates here can not do. Make a crate can be shaped tube that has a relatively styrofoam blocks small cross section. Most often hollow rectangle or square section 20x20 mm 20h40 mm. This crate is able to provide roof strength and ability to withstand stress.
In order to increase the rigidity of the roof made of polycarbonate, it usually makes arched shape. Arch design capable of withstanding heavy loads, most of these properties styrofoam blocks are in the case of polycarbonate. If you take a polycarbonate sheet having a thickness of 16 mm, and use it for installation design keeping in step 2400 mm and 2400 mm radius, in this case there is no need for construction sheathing. Running it solely for communication between an arch supports.
The property is conditioned by the material and angle of slope of the roof, which should be considered in the construction of the roof truss made of polycarbonate. The minimum slope of ramps should not be less than 45 degrees, well, if we talk about the most appropriate roof pitch, its level should be 50 . Step rafters in the construction of the roof meets the width of the sheet of polycarbonate, as