Paraflam® cavity barrier is a perimeter fire stop designed for external rainscreen facades.
Manufactured as a non-combustible stone wool based product with a foil facing which prevents fibre migration and provides an excellent seal.
It is designed to reinstate the fire resistance of a compartment, as well as offering good thermal and acoustic performance
Typically used a vertical cavity barrier at corner junctions, wall partitions and around window openings, it is installed as a full fill barrier using compression.
The Paraflam comes in 1200mm x 1000mm slabs and is available in thicknesses of 75mm, 100mm & 125mm.
Fire resistances of EI30, EI60 & EI120 available, tested up to a cavity size of 590mm
A1 rated to EN 13501-1:2018 Fire Classification.
Fire resistance up EI120 when tested to EN 13501-2
EN ISO 10140-2:2010 Acoustic Rating up to 34dB
EN1366-4 fire resistance test for service installations.
Block, masonry, aerated concrete and concrete must be within a density range of 450 to 2300kg/m³. CP
(cement particle) board and concrete cladding must be within a density range of 450 to 2300kg/m³. Timber
must have a minimum density of 510kg/m³. All substrates must have at least the same Fire Resistance as is
required by the fire stopping system.
- Masonry construction
- Curtain wall and perimeter facades
- External rainscreen facades
- Large horizontal and vertical joints in walls and floors
- Fire stop for internal apertures
|Fire Resistance||Up to 120 minutes|
|Reaction to Fire||Class A1|
|Acoustic||Up to 34dB|
|Air Permeability||600 Pa 0.4m3/h|
|Cavity Size||Up to 590mm|
|Size (WxL)||1200mm x 1000mm (pre-cut lengths available)|
|Thickness||75mm, 100mm, 120mm|
|Storage Conditions||To be stored in dry conditions|