Openings enable rooms to be used and lived in; they illuminate and ventilate the interior and satisfy the human need for contact with the outside world. At the same time, they represent weak points in the building shell that allow dazzling light, cold, damp or noise to penetrate into the interior. The geographical and local situation of the building determine the requirements for the openings — the requirements are dependent on the orientation to points of the compass, to the building height, the climatic conditions, environmental influences and spatial circumstances. While the basic tasks of windows have not changed fundamentally up to the present day, the requirements for the quality of the heat, sound and fire protection have risen sharply and influence the design of the window itself as well as the component connections.
Turn a negative into a positive
The window should protect the interior against cold in winter and against heat in summer. With the high insulation standards and intelligent energy concepts common today, windows have a further purpose: The glass areas can be used to obtain solar energy. The correlation between rising energy losses with increased window areas and simultaneously increasing solar gains at certain times of the year must be examined in each individual case to enable a decision to be taken with regard to the size and the direction of window areas. Modern windows meet high demands for heat and sound protection. If even better heat and sound insulation values are required in specific circumstances, functional glass can be used.
Prevent radiant cooling and draughts
The surface temperature on the insides of the windows and the air-tightness of the connections have a decisive impact on the comfort of the users. Thermal comfort is always experienced subjectively, but strong movements of air in closed rooms are always experienced as uncomfortable draughts. To prevent this and to ensure targeted ventilation, you must ensure an air-tight connection at the component joints and between the frame and opening sashes. The air humidity in the room also influences comfort and can be regulated with ventilation.
The right settings for privacy
Windows allow visual connections and even direct contact with the outside world, but also allow people to see in from outside. Depending on the type of room behind the window and the degree of privacy desired, privacy protection is required. This can be fixed or variable and located either outside or inside.
If monitor workstations are located behind window openings, sufficient glare protection must also be ensured. Glare protection systems can be raised from the lower edge of the opening and can be positioned individually. They thus measure out the rays that come in without covering the entire glass area, as the exposure to daylight and the visual contact to the outside should be guaranteed, even if it is restricted.
Our windows and doors meet the highest demands for burglary protection as standard.
For windows on the ground floor or windows that are accessible to third parties via other structures (e.g. a garage or adjacent balconies), measures must be taken to protect against burglary.
To do this you can upgrade to the higher safety classes RC1N and RC2N. For the KF 500 UPVC and UPVC/aluminium windows, the innovative I-tec Locking ensures maximum security at RC2N level as standard.
Doors are fitted with a three-way or five-way locking mechanism. This offers a special class of security. You can also select an automatic locking mechanism that is operated via finger scanning, transponders or radio transmitters.