It would seem that such a special - the bar, which frames the outside of the window opening, that's the whole concept of the window casing. But how do you remember the beauty of wooden carved window frames on the windows, so you immediately understand that the platbands are not so simple. And if you drop the lyrics, then the platbands on the windows - this is not only a decorative element. They are installed and with a fully functional purpose - they close the gap between the wall and the window, thus preventing the penetration of dust or moisture into the house; hide crayons flaws, possibly allowed when installing a window; and simply installing the clypeus gives the window a completed, and in some cases an absolutely individual, look.
Types of casings
First of all, the platbands can be divided into species depending on the material of their manufacture. Outside of competition, of course, there are classic platbands made of wood. For their manufacture can be used as expensive wood - beech or oak, and more acceptable for mass use - birch, alder, pine. To extend the period of their operation, these platbands are painted, covered with various stains and varnishes. The simplest platbands on the windows are strips of wood of one or another width.
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But, no doubt, your house will look special with beautiful carved window frames. And already in the wooden house , perhaps, it would even be a shame not to install the carved platbands on the windows.
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Also, window frames can be made of metal, PVC and polyurethane. For the last two types of platbands, as is clear from the name, modern materials are used. PVC casing, as a rule, is installed for windows made of metal-plastic. Such platbands, in view of the technical characteristics of the PVC material itself, are durable, do not rot, do not need periodic tinting and special care. And the possibility of laminating the platbands from PVC to different types of wood, allows them to be selected depending on the customer's requests and design settings. An alternative option for platbands from PVC - platbands made of polyurethane. Since this material is plastic enough, it is easy to manufacture the casings of the most unusual shapes and configurations, up to round ones. Polyurethane platbands, as well as platbands made of PVC, have increased resistance to external unfavorable conditions, are easy to operate.
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The next parameter, which can be divided into types of platbands, is the type of installation. In this regard, the platbands can be overhead - they are fastened directly to the wall with the help of nails without hats, and so-called telescopic fastenings - fastening is performed by entering into the frame of special projections on the casing (wings). In form, the trim can be flat, rounded or curly.
Metal trim for windows
On the casing, made of metal, I should say a few words specifically. For their manufacture, as a rule, use thin sheet metal (aluminum, less often zinced). The metal platbands have received their name - strips. Just like the platbands made of wood, the strips can be made with different patterns, in their beauty, not inferior to carving in wood. There are masters who make patterns on metal casing windows so skillfully and thinly that the product takes the form of a thin lace. And from the names of the individual parts of the platbands, it also has some refinement and grace: the upper part is called the kokoshnik, the lower part is called the towel. Sometimes, to make carved metal platbands more decorative, clear and expressive, they are painted.
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