MB-60US, MB-60US HI Window system with hidden sash

The MB-60US Hidden Casement system is a development of the thermal break MB-60 window and door system. The windows produced from the profiles of this system have casements that are unseen from the outside. In the row of adjacent fixed and open windows all the glazed areas look the same from m the outside and have the same slim frame sight lines.

Similar, to the standard solution, MB-60 windows have an effective water drainage and ventilation system from the vent glazing chamber and also from the chamber between the casement vent and frame. The ventilation and drainage holes covered from the outside with cover caps.

A feature of the system is its close connection with the other systems from ALUPROF, by adopting this design approach which has allowed the application of many standard elements, such as common glazing beads, corner joints, sealing strips, glazing, gaskets, common hardware and techniques in construction.

Further development of the syste includes an improved thermal insulation system, MB-60US HI which has been developed. The improved thermal insulation has been obtained by placing special inserts in the central chambers of aluminium profiles between the polyamide thermal break. Owing to a low value of the heat-transfer coefficient, the inserts decrease heat transfer through the frame construction and in turn reduces convection and thermal radiation.