SMOKE BARRIERS - Fire Compartmentation

ADVANTAGES

• Time & Cost Effectiveness
• Slimwalls
• Lightweight
• Thermal Resistance
• Impact Resistant
• Acoustic Performance
• Fire Resistance Performance

The purpose of a cavity barrier is to prevent smoke and flame from penetrating and/or moving within a concealed space in a fire compartment.

Building Regulations provide guidance on where such barriers should be located within hidden voids in a building and they give examples of deemed-to-satisfy barriers for voids in stud walls or partitions.

If a barrier in a concealed space coincides with a compartment wall or floor it will normally be required to provide the same fire performance as the wall or floor. If the barrier is located between such walls or floors however, the barrier is defined as a ‘cavity barrier’ and as such will normally only be required to provide 30 minutes integrity and 15 minutes insulation. There are also instances where insurance companies insist on 30 minutes insulation. “Large” and “small” cavity barriers are only defined in Scottish Building Regulations. For insurance purposes, a large barrier is more than 600mm x 600mm.

A large cavity barrier is defined as a barrier across a void in which a square with 1m sides can be accommodated. A small cavity barrier is a barrier in which such a square cannot be accommodated. A large cavity barrier is required to provide 30 minutes integrity and 15 minutes insulation whereas a small cavity barrier need only provide 30 minutes integrity.

RELATED PRODUCTS - FIRE RESISTANT BOARDS

calcium silicate fireproof boardPROMATECT®-H composite board manufactures with a fibre cement coreDURASTEEL®  fire resistant board promina 60PROMINA® 60 

RELATED FIRE PROTECTION APPLICATIONS

blast barriers fire compartmentation Blast barriers  fire protection shaft wallShafts fire protection partition wallFire-rated walls photo of fire compartmentation ceiling Fire resistant ceilings fire rated doors DURASTEELFire resistant doors