QVB Rainscreen Ventilated Cavity Barrier

Cavity fire barrier for rainscreen cladding applications. Maintaining a ventilated cavity.

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40 years of experience

Features & Benefits

• Up to 2 hours fire rating
• Tested in accordance with BS EN 1363-1: 1999
• Provides a 25mm airspace behind rainscreen cladding
• Foil faced to provide a smoke barrier
• Available to suit cavity widths from 75mm to 300mm

Regulations

Quelfire Rainscreen Barrier has been fire tested at Chiltern
International Fire, achieving up to two hours fire integrity
when fitted between blockwork and rainscreen cladding.
Tests were carried out in accordance with BS EN
1363-1:1999.

Composition

Quelfire Rainscreen Barrier is manufactured using rockfibre mineral wool which achieves a fire classification of Euroclass A1 as defined in BS EN 13501-1, and conforms to BS EN 13162 and EN16001 Energy Management Systems. Quelfire’s rockfibre mineral wool insulation has a thermal conductivity of 0.035W/mK. Quelfire Rainscreen Barriers are supplied in polythene packs which are designed for transporting and protecting the products.
It is not recommended that the packs are stored in direct sunlight. When storing the barriers for longer periods of time
it is recommended that the product should be stored indoors, or under cover.
No CFCs or HCFCs are involved in the manufacturing process of Quelfire’s rockfibre mineral wool insulation. The material presents no known threat to the environment and is classed as ODP and GWP zero. Quelfire’s Rainscreen Barrier has a
Green Guide rating of A+.

Durability

Quelfire Rainscreen Barrier is expected to last the lifetime of the building.

Application / Installation

Quelfire Rainscreen Barrier has been designed to provide a two hour fire rating where continuous vertical airflow is required behind a rainscreen cladding system.
The Quelfire Fixing Spike is fitted to the external surface of the inner blockwork, onto which the Quelfire Rainscreen Barrier is
then impaled. A Quelfire Spacer Spike is fitted to the external surface of the Rainscreen Barrier below the intumescent strip. The Spacer Spike ensures the 25mm airspace is maintained along the length of the fire break.

Quelfire Rainscreen Barrier can be used in conjunction with Quelfire Fire Stop Slab vertically. Vertical barriers fully fill the cavity while horizontal Rainscreen Barriers provide a fixed 25mm airspace. The provided Quelfire Spacer Spikes ensure the correct airspace is maintained during fitting.

Can’t find your size? Quelfire Rainscreen Barrier can be manufactured to suit any cavity width between 75 and 300mm.

Contact us for more information.

Technical Support & Guidance

Should you require any further information regarding this product, please don’t hesitate to contact Quelfire Ltd

PERFORMANCE

Product CodeSuitable for Cavity WidthDimensionsFire Rating
QVB7575mm50 x 100 x 1200mm2 hours
QVB8585mm60 x 100 x 1200mm2 hours
QVB100100mm75 x 100 x 1200mm2 hours
QVB125125mm100 x 100 x 1200mm2 hours
QVB150150mm125 x 100 x 1200mm2 hours
QVB175175mm150 x 100 x 1200mm2 hours
QVB200200mm175 x 100 x 1200mm2 hours
QVB225225mm200 x 100 x 1200mm2 hours
QVB250250mm225 x 100 x 1200mm2 hours
QVB275275mm250 x 100 x 1200mm2 hours
QVB300300mm275 x 100 x 1200mm2 hours