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PFC Corofil VFB+ Open State Cavity Barrier
Application

Fixed within horizontal and vertical cavities up to 500 mm wide to allow a ventilation and drainage gap.

Description

Open state cavity barrier used to prevent the spread of fire for up to 90 minutes.

Features and benefits:

  • Suitable for cavity widths up to 500 mm.
  • Intumescent material expands to fill a continuous air gap of up to 44 mm wide.
  • Allows ventilation and moisture dissipation thus preventing damp problems.
  • Suitable for most horizontal and vertical cavities.

Applications:

Fixed within horizontal and vertical cavities up to 500 mm wide to allow a ventilation and drainage gap.

General information
Material

TENMAT intumescent strip fixed to a high density rock mineral fibre section, which is then shrink wrapped in polythene

Uniclass 2015
Pr_25_80_80_44 Intumescent sleeved mineral wool cavity fire barriersPrimary
CAWS

P10/40 Insulation fitted between studs

P12/360 Mineral wool rigid batts

P12/40 Mineral wool rigid batts

Specification data - Intumescent sleeved mineral wool cavity fire barriers
Product Reference

PFC Corofil VFB+ Open State Cavity Barrier

Cavity size

Insert requirement, available to suit up to 500 mm widths.

Standard product features

Material:

TENMAT intumescent strip fixed to a high density rock mineral fibre section, which is then shrink wrapped in polythene.

Fire rating (to BS 476-20, BS 476-22 and BS EN 1363-1):

Up to 90 minutes dependent on cavity size and wall construction, consult manufacturer's literature for more information.

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