The requirements for windows are multiplex and enormous.

Today the protection against noise is also important as the maximal heat insulation. To achieve the objective criteria for windows these requirements are divided and controlled according to ÖNORM B 5300 and DIN 18055 respectively. STABIL windows always meet the highest requirements.

STABIL windows are constantly controlled by internal quality control and regularly controlled for previously stated values by national authorised institutes. By that the constant quality and compliance with regulations regarding indicated values are secured.

In a conventional house up to 25% of energy can be lost through windows.

Heat insulation of a window depends upon a frame material, the insulating glass and the tightness of q window (Uw-value parameter).

The lower this value - better the heat insulation. This value can be improved by roller-shutters or window shutters mounting.

The noise is disturbing and can have a negative impact on an organism.

Glazing, frame construction and air permeability of gaps are important for sound insulation. Sound insulation coefficient is measured in decibels (dB).

Higher number means better sound insulation.