Cavity Fire Barrier on a Roll
Tested to BS 476 Part 20.
30 Minutes Fire Rating.
Supplied as a 75mm wide x 4mm thick x 6.3 metre long roll.
For cavities up to a nominal 50mm width.
Easy to work with and install.
Designed for masonry cavities and behind door / window jambs.
Allows normal air circulation and prevents thermal & moisture bridging.
Reduces the need for unsightly ventilation and drainage apertures.
Low profile design - prevents pushing out of bricks or distortion of cladding.
Note: Not suitable for use with rain screen cladding or timber cladding systems. (See our range of Ventilated Fire Barriers / Cladding Seals for rainscreen and timber cladding fire protection options)
Completely closing a wall cavity with a solid barrier can affect thermal performance and create moisture bridging, leading to structural damage. However, fully open wall cavities can form unrestricted chimneys that allow fires to spread.
The solution is a Cavity Fire Barrier that allows the wall cavity to perform as designed while enhancing fire protection. The low profile intumescent design also allows brickwork to be laid unobstructed.
This slim design fire barrier only intrudes 4mm into the wall cavity, leaving it open for all practical purposes, until fire enters the cavity.
In the event of a fire the intumescent materials in the cavity fire barrier expand rapidly forming a fire resistant char that stops the spread of flames for up to 30 minutes.
Tenmat Cavity Barrier Product Data
Cavity Fire Barrier on a Roll is tested to BS 476 Part 20: 1987.
Test Report No. Chilt/IF07077. 30 Minutes Fire Integrity, plus 20% over-run, without failure
Dimensions and Properties:
75mm wide x 4mm thick x 6.3 metre long roll. Red only.