Specifications of plastic and plastic windows. You do not introduce error now in the "German quality" as "truly foreign" window profile in Russia is almost absent, most "German" and "Austrian" profile systems: KBE, VEKA, TROCAL, REHAU, PROPLEX and others – are made in factories near Moscow. KBE, and TROCAL in Voskresensk, PROPLEX Podolsk, REHAU as Gzhel, VEKA as Troitsk, and Novosibirsk. How do you choose? You just have to figure out what characteristics should meet "your" window. The main features of plastic windows and will be discussed in this article.
Soundproofing windows are obliged to protect from street noise. Quantity characterizing this protection is so called decibels (dB). This is the decimal logarithm of the ratio of capacities AV (dB) = 10log (V1 / V2). Modern PVC plastic windows to protect us from the noise of 30 dB to 50 dB, ie, from 1,000 to 100,000 times. It depends on many factors: the number of cameras in the profile of quality of the glass, from tightness of joints and the use of special seals to ensure a good fit.
In any case, look at the Decibels and more of them, the better. Thermal insulation of windows must keep our homes warm. To characterize the properties of thermal insulation is used to measure heat transfer and thermal resistance R (the reciprocal of the figure K). Thermal resistance R = 1 / K (measured in m2 -S/Vt) is numerically equal to the temperature difference required to transfer a unit of heat flow (equal to 1 W/m2) through a layer of material. The higher the value of thermal resistance R, the greater the insulating properties of window construction. Indicators of the thermal resistance R of modern windows range from 0.6 to 0.8. Improve this figure double glazing, thickness and number of chambers in the profile, low-emissivity coatings and glasses. The air is deduced from the premises through the air extraction and ventilation systems. Fresh air enters the room through the windows and doors. For this purpose each plastic box and plastic door even closed state must pass air. This property is called air permeability. Standards should not be longer than 6 kg/m2 * h at a value of DP = 10 Pa, which corresponds to wind speeds in the street 15 km / h. Achieved this figure with using a special perforated profile. Security For added security, use a special anti-theft accessories. Need it or not you decide for yourself. Durability. Measured in conventional respectively. The more the better. The index ranges from 30 to 50 years. Frost. Naturally, in degrees. Typically up to – 60 C. Ergonomics. Is responsible for this fitting. Pull, open, close it. Convenient, easy means to you. Aesthetics. Measure this parameter is not possible. Shape, color, tint. Each holder of windows its representation of beauty. Choose the options you need, compare prices and you have goals. II Okoshkin.