MB-SR50N EI Fire Rated Facade System

Aluminium fire-rated facade system, available in EI15 to EI60 variants in accordance with EN 13501-2.

Features and benefits:

  • The same appearance for fire- and non-fire-rated elements of curtain wall facade.
  • Various design and aesthetics options for capping.
  • System flexibility allows facetted joints of up to ±7.5° per side, and inclined facades of up to ±15°, as well as slope and roof glazing between 0 and 80°.
  • Full compatibility with MB-78EI system allows fire-rated doors to be fitted into a curtain wall.


  • Air permeability to PN-EN 12152: AE 1050 Pa.
  • Watertightness to PN-EN 12154: RE1200.
  • Thermal insulation (Uf) from 1.9 W/(m²K).

General information

Uniclass 2015

Ss_25_10_20_85 Stick curtain walling systemsPrimary


H11/110 Curtain walling

Specification data - Stick curtain walling systems

Product Reference

MB-SR50N EI Fire Rated Facade System

Fire resistance





Glazing system

Thickness: 15–52 mm available.

Standard product features

Technical characteristics:

  • Mullion depth: 85–225 mm.
  • Transom depth: 69.5–189.5 mm.
  • Inertia mullions (range lx): 81.34–1222.14 cm⁴
  • Inertia transoms (range lz): 49.54–629.54 cm⁴

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