Fire Protection of External Walls


  • Time and cost effectiveness
  • Slim walls
  • Lightweight
  • Thermal resistance
  • Impact resistance
  • Acoustic performance
  • Fire resistance performance

External Wall

In the case of external walls, the proximity of a building to the relevant (facing) boundary determines the probability of it being a danger to other buildings on adjoining sites (if it is on fire) or it being at risk from a neighbouring building on fire. Requirements made in connection with building regulations therefore specify different performances for external walls depending upon their distance from the relevant boundary.

Where the walls are permitted to provide fire resistance only from the inside, loadbearing capacity and integrity are required to be satisfied for the full period, whereas insulation is sometimes required for only 15 minutes. This means that satisfactory constructions will be very different from those required to maintain insulation for the full period and where fire resistance is required from either side.

  FRL -/30/30 FRL -/60/60 FRL -/120/120 FRL -/240/15
PROMATECT®-H Conversion of External to Internall Wall X X X  
PROMATECT®-H External Wall -Single Sided Protection       X
PROMATECT®-H External Wall -Double Sided Protection X X X  
PROMINA® 60 External Wall -Single Sided Protection       X

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

Following are some of the factors to take into account when determining correct specifications that ensure an external wall provides required fire performance.

  • Distance from relevant boundary
  • External cladding
  • Structural steel
  • Single storey buildings
  • Cavity barriers
  • Thermal insulation
  • Impact resistance
  • Wind loading

Application & Technical Manual

Promat Asia Pacific Handbook

  • Partition & External Wall Series Technical Manual for Singapore #DownloadLabel#
  • Application & Technical Manual 03 Partitions & External Walls #DownloadLabel#
  • Passive Fire Protection Building & Construction Solutions for Hong Kong #DownloadLabel#

Product Data Sheets

Product Data Sheets

Safety Data Sheets

Safety Data Sheets