Aluminium Fire Rated Doors And Wall Partition

MB-78EI

The MB-78EI system has been developed for the production of internal or external fire-rated partition walls, with single- or double-leaf doors featured by a fire resistance class of EI 30,  EI 60, or EI 90 to EN 13501-2. In most cases, these constructions can also have smoke control characteristics (classes S200 & Sa). Numerous tests and calculations have shown that MB-78EI-based products have very good thermal and acoustic insulation. Due to its characteristics,  optimized technology & production costs, compatibility with other ALUPROF window and door systems, and constant technical development, it is a very popular product, widely used by construction professionals.

The structure of the MB-78 EI system is based on the thermally insulated, 78 mm deep aluminum profiles. They are characterized by a low overall heat transfer coefficient “U,”  thanks in the main, to specialist design thermal break, 34 mm in width. The resistance to high temperature is assured by special fire insulation elements – GKF or CI – introduced into the inner chambers of the profiles and into insulating spaces between profiles and steel accessories and joints.

The range of permissible dimensions of the construction includes fixed partitions up to 5.16 m  high and single-swing doors with leaf dimensions: W up to 1.4 m; H up to 3.0 m; the width of double doors may achieve 2.5 m. The MB-78EI door system can exist as an individual “goal-post frame” as part of a larger composite “window wall” or in fire resistant facade, our MB-SR50N  EI system. Structures & door sets of this type, both single & double leaf door arrangements,  have been successfully tested in a notified laboratory, obtaining fire resistance classes of EI  30 & EI 60.