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Difficult terms

  • Impregnation
    The process of saturating materials of various types (paper, textiles, leather, wood) with substances, which protect them from harmful effects of water, fire, and others. Its main objective is to give them some usage values, for  example: impermeability, fire resistance, resistance to retractility and pressing, air and gases impermeability.
  • Insulation
    Layer, which pampers mutual interaction of two environments (systems). The insulation can be divided into: electrical, acoustic, thermal, anti-corrosion and anti-dampness.
  • Micro-unsealing (micro-ventilation)
    It is a special function of circumferential ferrules, which makes it possible to apply not only a common tight closure also another one, in which there is a little crack between window frame and frame. Window wing has a minimum tilt and therefore guarantees continuous aeration of the room.
  • Window drill cap
    It is also known as rain rail, aluminium element of the window, which derives water (which flows on the window wing) on the outer side of the woodwork. It protects from the water infiltration to the room through the bottom parts of the wing and frame.Envelope ferrules
    System of mechanisms, which are opened  and closed usually by handles ( we can also use a hardware handle). It serves as a tool to open and close the wing. The main task of the envelope ferrule is to tighten the wing to the frame in such a way that the tilt an unseal are possible.
  • Window frame
    Frame is made of wood, metal or PVC. It is used to assembly wings or window pane as well as to fix the window or doors.
  • PVC
    PVC, in the past known as PWC is a polymer received in the process of polymerization of vinyl chloride. It has very good mechanic  strength and resistance to most dissolvents. There are two kinds of PVC: softened PVC, which is used to produce foil and cable insulation as well as PVC, which is not softened and used to manufacture plates, tubes, gutters, floor coverings.
  • Treshold
    Bottom horizontal element of the window frame.
  • Heat transmission
    It is determined by the heat transmission coefficient  U, which is commonly defined as an Mount of heat, which is transmitted through 1m2 of the separator within one hor Chile the difference of temperatures on both sides Mount for 1 degree C (1K). The higher is the heat transmission coefficient, the “colder” is the separator.
  • Light permeability
    It is determined by the coefficient Lt [%]. It is the percentage of the visible light, which comes from rays, that infiltrates through the glass.
  • Lacing
    Horizontal element of the window frame, which is placed between the treshold and head./doorhead.  
  • Distance frame
    Element made of special plastic or metal, which separates glass surfaces for the desired distance in the composite glass.  There is a moisture absorbent inside the distance frame, which dries the space between glass surfaces in the composite glass.
  • Silicon
    A silicate-organic material, which is hydrophobic, fire resistant, has fixed features in low and high temperatures as well as perfect insulation properties.
  • Window wing
    Movable part of the window, doors or gate, which is assembled in the window frame, loom or directly in a building hole.
  • Post
    Vertical element of the window frame, which is placed between the pillars. 
  • Movable post 
    Construction element of many-wings Windows. When the window is divided into two wings, the middle vertical element, which divides the window frame in two parts, does not appear (post). There is only one handle in such a situation, which facilitates it to open the first wing , whereas the second one is opened by inner lever of the envelope ferrule.
  • Float glass
    Glass, which has flat-parallel surface and are manufactured in a modern floatr process. It is an initial  material, which is used in further working of glass ( petrifaction, laminating , hardening…).
  • Hardened glass
    Glass, which is warmed up to the 670-690°C, and then abruptly frozen in order to reach a persistent gradient of stress, that’s causes an increase of mechanic strength and thermal resistance of the glass. The main features of the hardened glass:
    Strength while bending, which is five times higher than common glass (it is much harder to break it with a soft item), resistance to temperature changes (up to 200°C), while breaking it cracks into small blunt-edges pieces, which reduces the risk of maiming.
  • Laminated glass
    It consists of one sheet of glass, which is combined, on the whole surface, with one or several sheets of glass by the usage of one or more  layers of foil. 
  • Affixed grill
    These are wooden elements, which are affixed on the window pane and imitate a division of the wing into several fields. There is no aluminium frame between the elements on the inner and outer side of the window pane or  inside it, as it is in case of Wien grill.
  • Wien grill
    These are wooden elements, which are affixed on the window pane and imitate a division of the wing into several fields. There is an aluminium frame between the elements on the inner and outer side of the window pane or  inside it, which even more imitates the division of the whole wing.
  • Adhesive seal
    Seal which is assembled in the groove of the wing’s frame from the inner side of the room.
  • Cutter seal
    Seal which is assembled in the groove of the wing’s frame from the inner side of the room.
  • Window pane cut
    The place, where window pane package is assembled in the woodwork.
  • Heat transfer coefficient
    Coefficient, which determines heat infiltration through the separators in relation to the surface and the difference of the temperatures. In the installation technique it is used mainly to determine the heat losses of the building separators (walls, ceilings, windows and doors)- it informes about thermal insulation of the separators. It explains how  how the stream of heat penetrates through the separator, which surface amounts for 1m2 when the difference of temperatures amounts for 1K. The coefficient is [W/m2/K], and is known as U or k. The lower is the value of the coefficient, the smaller are heat losses, which means that the better is the heat insulation of the separators.


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