To begin, it should be understood that the quarter of the windows is called part of the wall, protruding around the perimeter of the day. The main function of this constructive element is to provide more efficient insulation. The balcony unit enters a quarter to 2-3 cm, which is a kind of protection for the foam seam. That is why the discovery with a quarter is considered to be more warm than the usual way with a direct adjoining frame.
A quarter of the windows can be made of bricks, made of concrete or from a tree, depending on what the house is built, but, by and large, this nuance does not affect the glazing process. But what really matters, so this is the choice of the fastening method.
Remember: on the frame installed in the opening with a quarter affects exactly the same loads, as in the frame mounted in a straight line, so the presence of a quarter does not give any advantages when fixing the frame.
The only correct solution is to consolidate the balcony block by direct mount with the help of a heater or anchor, for which in the frame it is necessary to drill special holes for fasteners. Many masters refuse such technology because they are very frightened by the prospect of stuffing windows, if the frame suddenly be a rush. However, if you approach the question from a rational point of view and without emotion, it becomes clear that these fears are completely unfounded. After examining any plastic window, you will find a through drainage hole that manufacturers are carefully placed in the frame just to ensure that the windows do not sweat. The chambers in the window profile are not communicated in any way, therefore a straight hole that you drill will be quite technologically and on the functionality of the window will not affect.
Article on the topic: Wall profile for drywall: Selection and installation of frameworks
Let you not enter into temptation a pleasant appearance of standard mounting plates and the easiest process of installing a balcony unit with their help. The strength of such attachment is not enough even to hold the sash in the open position, not to mention other operational loads. The deformation of the product in this case is simply inevitable.
If you did not dare to install the balcony block with your own hands, but invited, in your opinion, not very experienced installers, feel free to share with their theoretical knowledge that in any way, be it direct or with a quarter, the frame can be fixed only through Direct fastening.