Fire Protection of Cavity & Smoke Barriers


Parapet Wall

A parapet is a low standing wall above a roof, on top of either an external wall or a fire separating wall. A parapet wall is supposed to prevent fire venting through the roof on one property and crossing over the separating wall down into any adjacent property.

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 Parapet Wall X
PROMINA® 60 Parapet Wall 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