The Alpac PRESYSTEM® SPS is the ideal solution for creating an external darkening system suitable for the use of all types of blinds and shutters, with swing or sliding movements.
It does not require subsequent holes in the finished wall for fixing the shutters and gives an optimal aesthetic effect. In addition, it prevents cracking and infiltration because it has side clamps complete with a hinge tray, for a secure and practical fixing of the shutters.
It consists of extruded polystyrene (XPS) and asbestos cement insulating shoulders and top side, and can be completed with a thermal break under the window sill to maximise the degree of insulation.
PRESYSTEM® SPS comes in many variations depending on the type of wall and the position of the window frame. Alpac also provides complete technical and design assistance to develop ad hoc models, depending on the specific needs of the site.