T-Barrier for Timber Frame

ARC T-Barrier Timber Frame providing firestopping at the party wall cavity detail of low rise timber frame construction.
Fire product

ARC T-Barrier Timber Frame

  • Up to one hour fire integrity
  • Seals edge of party wall cavity
  • Zero U-Value at party wall can be achieved
  • Up to three times more effective as an edge seal than conventional systems
  • Reduces flanking noise
  • Minimises thermal bypass
  • Easy to install
  • Third-party certificated by IFC


ARC T-Barrier enables the closing of an external cavity at a party wall junction where building regulations require the use of a mineral wool closer for acoustic insulation purposes. Additionally, it provides an effective edge seal around the party wall cavity, helping to achieve a zero U-value.

Key stats

Length supplied 1.2m
Third-party certification IFC certificate number: IFCC 1728
Insulation Rockfibre mineral wool
Thermal conductivity 0.037W/mK
Fire rating Up to 1 hour
Construction type Timber frame

Frequently asked questions about this product

How do you install T-Barrier for Timber Frame?

Please follow the guidance on our datasheet.

Industry awards and accreditations for this product

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