The institution of sro in the building there in the world for quite some time. Without hesitation Ali Partovi explained all about the problem. The emergence of this institution associated with the processes of liberalization, deregulation, deregulation, which occur periodically in different developed countries. These reforms are carried out on the initiative of top officials, and (or) the influential political forces who believe that most problems in various spheres of social and economic life citizens and organizations are fully capable to decide on their own, without the active and sometimes very persistent state involvement. Many writers such as Samsung offer more in-depth analysis. Thus, the state can say, returning power to the population, which citizens empower government agencies participating in the electoral process. According to the authors of such reforms, sro leads to greater activity of the population and experts in their fields allowing them to more precisely regulate they know public relations, as well as reducing the bureaucratic apparatus of the state and the cost of its maintenance. All of the above should ultimately lead to the improvement of professional societies and as a consequence – to the welfare of the citizens and the country as a whole.

However, due to the overall imperfection of human nature such plans but were not always conceived in the form. The fact that excessive uncontrolled deregulation may lead to irreversible anarchic processes of bureaucratization of SROs (the appearance of the so-called problem of 'control of the controller'), strengthening the monopoly of the destructive processes in the economy and how consequence – to discredit the very idea of cpo in the building, which is a reasonable approach clearly carries a number of benefits and advantages. World experience of development of this public institution abroad allows conclude that an unambiguous definition of such public institutions as the sro in construction, can not be given because of significant differences between the methods and objects of regulation arise in this relationship, and differences in the causes and circumstances of its origin. In the most general sense, this phenomenon is the rule formulated by private organizations for the regulation of professional and commercial activity. It should be noted that the SROs in the construction should be distinguished from the professional associations that are created to deal with similar but not identical problems and, moreover, differ in the method of the relationship between body and party.

Another category of steel doors – the so-called "elite" steel door. Typically, this the doors of foreign manufacture (European, for example GERDA), which are expensive forms of external and internal finishes (MDF, veneer), as well as expensive locks, accessories (also imported). To the weak sides of these doors should be attributed to considerable cost – from $ 1500 and great delivery time. The latter category – it is the metal doors of domestic manufacturing. They are optimal in terms of price and quality (from U.S. $ 350). Similar between is at first glance thanks to finishing materials (vinil. leather, hardboard, mdf, veneer., polymer coating), they are quite different in structure and internal devices.

First of all, was isolated and welded tselnognutye Box Design and the door leaf. The level of burglary, manufacturability and appearance wins tselnognutye door. Used a loop can be open or hidden. Open loop is opened 180 degrees, but their level of burglary is much lower than that of the hidden (the opening angle of about 110 degrees). The thickness of the hidden loops must be at least 6 millimeters to door leaf is not slack with time.

Door leaf must should be strengthened with additional system of stiffeners, protivootgibochnymi corners, and insulated (Isover, min. wadding, foam). Scope of locks need to be strengthened against the plate, drilling, strengthen the special canisters under lock and key. Have to rely on those producers who can provide you with complete and clear information on the design of manufactured doors. Thus, the door of domestic production is better to choose from tselnognutogo profile, hidden hinges and a powerful "sound" design. Weak side of the door, perhaps, is their appearance (for doors decorated with vinyl. Skin), "bored" with the Soviet era, although this drawback can be minimized if we choose as finishing mdf, veneer, particleboard (optional 120-300 dollars). When considering the strengths of the metal doors of domestic production, they are: 1. optimal the ratio of price and quality 2. a wide range of materials used, locks. 3. production according to individual customer's sizes. 4. guarantee the local manufacturer. Market for domestic steel doors sufficiently representative, thanks to the choice of such doors can rely on the experience and reputation of the manufacturer, the professionalism of the sales and installation teams.

Mosquito nets and mosquito nets are designed precisely to protect the premises of insects. They are used in spring-autumn period and are installed on any type of windows, wood windows, balcony doors, plastic windows, attic or terrace. Mosquito nets not only performs its main function, that is, protection against insects, and prevents the ingress of dust and poplar fluff, dandelion seeds or debris from the street or from the upper floors. Mesh is made from a material that makes it not only impervious to insects, but almost invisible on the window. Mosquito nets sufficiently strong, durable and resistant to bending and trudnosgoraema but at the same time ensure full penetration of air but no insects. There are several types of roll grids: a framework mosquito nets and mosquito nets swing. Net Framework is used for standard windows and air vents.

This lightweight design of the aluminum profile. In a mosquito net is a pen and spanned the cellular plastic sheet. As for swinging the mosquito net, it is used for large windows and balcony doors. Window grid is needed to ensure comfort during the warmer months. Protection from insects and allergens and is often used in places where you need a permanent address outside the frame. Often the insect screen is used in suburban homes as the walls between the house and garden. And sometimes, this grid is part of the decor, dividing the room into different zones. Mosquito nets is very convenient and practical to use, so become an integral part modern windows.

In addition to the certificates of conformity, window units must be accompanied by detailed technical documentation and assembly, which facilitates the selection of the most suitable product and the process of installation. Rule two: Certify and Diversify their services. Quality certificate can be accompanied not only products but also services companies, assembly or installation of window units. As a rule, the document provides a window profile producer. This is an additional guarantee of quality installation work. Evidence confirms that processes the assembly window assemblies satisfy the entire list of requirements for quality and accuracy of the mutual arrangement of structural elements imposed upon them by gost, and qualification staff have the appropriate level.

It should be noted, and the fact that such certificates are issued to processors only after a full audit by representatives of the manufacturer of the profile. Assessment subject to processes of window production, manufacturing facilities, staff and service levels, as well as the rate of mining claims. According to Roman , Commercial Director of the Group of Companies propleks, Russia's largest manufacturer of pvc window profile of Austrian technologies: "The introduction of a certification system is a logical step in the development of the window market. We conduct regular surveys professionals okonschikov. Most respondents say the recent increase in buyers' requirements for quality products and are in favor of the need to improve customer service. Availability certificates of compliance from business partners will be for the buyer confirms that when producing companies, refiners have been complied with all regulations and guests and used in modern technology of production of pvc windows.