| 摘要 |
System of plastic profiles for assembling blocks to close openings of building structures, like windows, doors and fa?ade elements, has profile of frame and profile of fold, both profiles, each, have the upper, the lower and two side walls, those form central chamber to place there reinforcement element with outer and inner shelves with outer and inner walls connected with rigidity ribs with formation of air supplementary chambers, at that at the lower wall of the fold profile furniture slot is provided, this is connected to side outer wall of outer shelf. Central chamber in frame is arranged in rectangular shape to place there reinforcement element of closed cross-section. In the lower part of the frame at least two outer and two inner bosses are provided, for fixation of supplementary structural elements. The slot is connected to side outer wall of the outer shelf with at least two transverse rigidity ribs. The lower part of the inner wall of the inner shelf is arranged with skew to prevent water penetration to metal parts of furniture.
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