ARC T-Barrier and Pitched Roof System - Masonry

Fire barrier for cavity walls and roof

ARC T-Barrier and Pitched Roof System - Masonry

The ARC T-Barrier System has been developed to create an effective edge seal around the party wall cavity to provide a complete fire barrier between two dwellings, both in the vertical cavity, and the cavity between the pitched roofs within a masonry construction. 


  • Zero U-value at party wall can be achieved
  • Up to three times more effective as an edge seal than conventional systems
  • Simplified installation when compared to conventional systems
  • Reduces sound transmission between the dwellings and within the cavity
  • Minimises thermal bypass

ARC T-Barrier satisfies NHBC Chapter 7.2 D13 'Junctions between roofs and compartment separating walls shall adequately resist fire spread.'