Fire Protection of Cavity & Smoke Barriers


Spandrel Wall

A spandrel panel is used generally as part of curtain walling systems. The spandrel panel generally protects vertically up from the top of a floor slab, or down from the underside of a floor slab. Spandrel panels are supposed to deflect fire and prevent spread of flames via the ends of floor slabs.

A spandrel wall is designed to form a separator at any part of a window or an opening in an external wall above another opening in the storey below. The vertical construction projects no further than 450mm outside the lower opening.

Parapet and spandrel walls should normally be approved in accordance with the criteria of BS 476: Part 22: 1987, which is required to satisfy a minimum fire resistance of 60/60/60 (for exceptions please check with local building regulations guidance documents or, if relevant, insurance codes).

  FRL -/120/-
PROMATECT®-H Spandrel Wall (Non Loadbearing) X

Note: FRL */*/* (Fire Resistance Limit – *Stability / *Integrity / *Insulation)

Following are some factors to consider when determining the correct specification to ensure cavity barriers provide the required fire performance:

  • Size of barrier & location
  • Differential movement
  • Service penetrations
  • Adjoining structure

Application & Technical Manual

Promat Asia Pacific Handbook

  • Application & Technical Manual 07 Cavity Barriers #DownloadLabel#
  • Passive Fire Protection Building & Construction Solutions for Hong Kong #DownloadLabel#

Product Data Sheets

Product Data Sheets

Safety Data Sheets

Safety Data Sheets