MB-SR50 EI

Technical description:

MB-SR50 EI fire resistant post and beam walls EI15 to EI60

The MB-SR50 EI post and beam wall system is used for the construction of lightweight fire protection and fireproof panel walls EI15, EI30, EI45, EI60 according to PN-EN 1364-3 and PN-EN 1364-1, as well as glazed roof coverings in fire resistance class REI20 / RE30 according to PN-EN 1365-2 standard. The system is classified as non-spreading fire (NRO).

In the MB-SR50 EI construction, profiles of the basic MB-SR50 façade system are used: posts with the depth of 85 ÷ 225 mm and beams with the depth of 65 ÷ 185 mm. The view of the fire resistant façade does not deviate from the base system. In order to obtain fire resistance, the posts and beams are equipped with special flame retardants. Such an insert consists of a reinforced aluminum profile that is shielded with fire protection plates. Glass or other fire resistant fillings are embedded in frames formed by pole and beam profiles as well as  pressure strips. In order to obtain optimal thermal and acoustic insulation we apply a continuous thermal spacer made of HPVC material as well as  profiled EPDM window pane gaskets. In addition, a flame-resistant tape is used on the side surfaces of the insulator. It swells and fills the space between the facade fillings under the influence of high temperature. The pressure plate is attached to the load-bearing profiles by means of a stainless steel screw and a washer. Such a glazing system ensures that the façade's technical parameters are met, and it protects the glass or other filling from falling out of the frame during any fire.

The structure of the fire resistant post and beam system enables the application of angular joints up to ± 7,5 per side and construction of façades inclined from vertical by as much as ± 15 °. Roof glazing based on that structure may have an inclination of 0 to 80 °. It is also possible to assemble the MB-78EI door system in the post and beam facades, while maintaining the fire integrity coefficients of the whole structure in the EI30 or EI60 classes.