All profiles in exprof windows are equipped with reinforcing inserts with a thickness of 1.5 to 2 mm and have a protective zinc coating. Double-glazed window The main characteristics of the element: the thickness of the double-glazed window, the number of glasses and, accordingly, the chambers between the glasses, the presence of special glasses with heat-shielding coating.
Slotted air ducts are a channel with a damper that opens manually or automatically. Seam valves have a more complex device with a damper that shuts off the flow at a dangerous level of draft. Overhead mechanisms are able to provide the maximum influx of fresh air, however, they significantly reduce the sound and heat-shielding properties of the window block, therefore they are not widely used.
But in slightly more extreme circumstances, such as severe frost or heat, as well as direct sunlight (UV), it can fail. Becoming brittle in the cold and softening in the heat, it quickly becomes unusable if the window sash is actively used. But with the doors constantly closed (or constantly ajar, in micro-ventilation mode, for example), it will last quite a long time.
EPDM seal Ethylene propylene rubber seal is also a fairly durable material, which, moreover, is cheaper than silicone. It can be found on the windows of the middle and highest price categories, or you can buy it yourself. True, it is not easy to replace it yourself, it is better to call the master.
Replacing a double-glazed window with an energy-saving one Why choose KORSA Windows? The main requirements for the windows of apartment buildings are high noise insulation, safety and the possibility of ventilation of the premises. An important factor is the choice of components. Their quality affects the tightness of the doors and the operation of the fittings. Residents of the lower floors should choose plastic windows equipped with protective elements. If small children live in the apartment, it is necessary to have blocking elements from the inside.
If a company offers a mega-durable functional window from a thick branded profile frombloody "ridiculous" price (and with 100% prepayment of work) - at least you should be wary.
Order a free call Selecting the type of sash opening When choosing plastic windows, you should decide on the type of sashes. They determine the functionality of the design and comfort during its operation. The type of sashes must be selected depending on the size of the structure, how many windows are in the room and whether there is a need for regular ventilation.
Reinforcing profile PVC insert By itself, polyvinyl chloride, even modified with chemical additives, is not a very strong material mechanically, moreover, it is prone to thermal deformation. But in combination with metal inserts, its stability and resistance to mechanical stress increase by an order of magnitude. It is more reliable to fasten all the fittings to the metal, which is quite a lot in a modern window.
Profile drainage holes Thermal insulation properties of the window depend on the number of chambers. There must be at least three of them for cold glazing of balconies, loggias and technical rooms and at least 5 for windows of residential premises, offices, retail establishments, hospitals and schools. PVC profile with 3 chambers PVC profile with 3 chambers. PVC profile with 5 chambers PVC profile with 5 chambers.
Window profiles are produced according to EN 12608 SR (Europe) and GOST 30673-99 (Russia). According to the main indicators, they are almost identical. The main parameters are the thickness of the walls of the outer contour and internal partitions. According to these indicators, the profile is divided into three types - "A", "B" and "C".