Masonry Party Wall System

Masonry Party Wall System

The ARC Party Wall system for masonry construction.

The ARC Masonry Party Wall System is an innovative fire-stopping solution for masonry constructions with an adjoining party wall. The System is comprised of nine complimenting products all designed to halt the spread of smoke and flames within hidden cavities at the party wall.

Key Benefits Of The ARC Masonry Party Wall System

  • Where appropriate, key products in the System exceed fire integrity requirements laid out in Approved Document B (ADB).
  • Satisfies NHBC Chapter 7.2 D13 ‘Junctions between roofs and compartment or separating walls shall adequately resist fire spread’.
  • Supports compliance in the new 2024 guidance laid out by NHBC.
  • Key products are third party certified by IFC.
  • A far more effective fire-stopping solution than conventional systems.
  • Supports an excellent U-value, reducing energy bills.
  • Complies with Robust Details.

Reducing Heat Loss

Aside from the life saving fire-stopping capabilities, the masonry System provides an impressive reduction in potential heat loss. The ARC Masonry Party Wall System dramatically reduces heat loss along the edges of the party wall, enabling a great U-value to be achieved. Without effective edge sealing, the party wall cavity allows heat to escape.

The image (below) highlights the areas of heat loss in a row of terraced houses, of a particular note is the heat loss at the top of the junction where the party wall cavity meets the external cavity. The Masonry Party Wall System directly addresses heat loss, supporting a high EPC rating and lowering energy bills.

Further Benefits Of The ARC Party Wall System

  • 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.
  • Specifically designed for masonry constructions.

Find Out How The Masonry Party Wall System Saves Lives

Products In The Masonry Party Wall System

Fire product

T-Barrier Foundation

The ARC T-Barrier Foundation is designed to provide a fire, thermal and acoustic break at the junction between the external cavity and the party wall cavity at foundation level.

Product details
Cavity Stop Sock

Fire product

Cavity Stop Sock

ARC Cavity Stop Sock restricts the spread of smoke and flames within the cavity of external masonry walls.

Product details
T-Barrier for Masonry Construction

Fire product

T-Barrier for Masonry Construction

The ARC T-Barrier is designed to provide a fire, thermal and acoustic break at the junction between the external cavity and the party wall cavity.

Product details
T-Barrier for Pitched Roof

Fire product

T-Barrier for Pitched Roof

The ARC T-Barrier Pitched Roof is designed to provide a fire, thermal and acoustic barrier between the top of the party wall blockwork and the underslaters felt.

Product details
Wired Tile Batten Barrier

Fire product

Wired Tile Batten Barrier

Designed to provide a fire, thermal and acoustic break at the party wall between the roof tiles and roof membrane.

Product details
Soffit Slab

Fire product

Soffit Slab

ARC Soffit Slab is designed to fill the void within the soffit, providing a fire, thermal and acoustic barrier between dwellings.

Product details
Spandrel Barrier

Fire product

Spandrel Barrier

ARC Spandrel Barrier seals the top of the party wall cavity, allowing a zero U-value to be achieved when used in conjunction with ARC T-Barrier vertically.

Product details
U-Barrier

Fire product

U-Barrier

ARC U-Barrier is compressed between the top of the spandrel panel and underside of the roof covering, creating a fire and thermal break.

Product details
A render of the Eaves Insulator sitting at the eaves junction. It features a black tray with ventilation ridges attached to a green bag of glass fibre insulation. The product is in-situ.

Cold bridging product

Eaves Insulator

The requirement for ARC Eaves Insulator elevated from the problem of heat loss through the roof membrane at the junction between the pitched roof and the top of the cavity wall.

Product details