ARC Party Wall DPC
  1. ARC Party Wall DPC
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ARC Party Wall DPC

Price range: £60.80 through £76.50

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Party Wall DPC

The ARC Party Wall DPC is a fully tested IFC certificated cavity barrier with integral DPC purposely designed to close external cavities and stop the spread of heat and flames in party wall external wall cavities in masonry construction. The ARC Party Wall DPC has been rigorously tested to meet or exceed the performance requirements laid out in UK and Irish Building Regulations, helping to ensure safer homes. It can be installed horizontally, vertically or staggered at the party wall detail.

Key Facts:

  • Up to 4 hours fire integrity
  • Vertical, horizontal and staggered options
  • Integral DPC
  • Specified in terraced, semi-detached, apartments and major projects
  • Meets requirements Approved Document B
  • Maximum cavity width available: 300mm
  • Easily installed with a friction fit
  • Third-party certificated by IFC

Application:

ARC Party Wall DPC enables the closing of an external cavity at either party wall or party floor junctions where building regulations require the use of mineral wool closer.

Manufactured from non-combustible rockfibre mineral wool insulation and sleeved in colour coded polythene for on-site identification and protection. The ARC Party Wall DPC includes an integral DPC, satisfying any requirement for a DPC to be installed between the barrier and external brickwork. The person installing the Party Wall DPC should first familiarise themselves with the datasheet, ensuring the correct product is being fitted into the cavity.

All performance claims made are evidenced in the IFC certification IFCC 1728.

Test reports, third party certification and MSDS available on request.

Installation instructions

ARC Party Wall DPC is designed to be installed as the brick and block work progresses, requiring only a friction fit within the cavity. No mechanical fixing is necessary. This product does not require a compression fit. Accuracy of brick work is essential to ensure no gaps exist around the barrier.

Vertical Installations:

The internal block work should be completed first. The ARC Party Wall DPC is then installed against this, with the brickwork being laid tight against the DPC, ensuring the barrier is tightly fitted with no gaps. The barrier should be oriented so that the 100mm lap of DPC is at the bottom of each length, this lap should run in front of the length below.

Horizontal Installations:

As the brick and block work progresses, set the large flange of DPC into the mortar between two courses of block (as shown overleaf). The height for this should be chosen so that the barrier sits against the edge of the floor, and the DPC is tight with no sags.

Tips for successful installation:

Ensure that the built cavity width is appropriate for the size of barrier being installed. If necessary bring together the internal and external leaf, as gaps cannot be present around the cavity fire barrier. Where it is necessary to join lengths together, these should be tightly butted ensuring there are no gaps in the insulation.

The coloured polythene encapsulation does not need to be removed at joints, but care should be taken to ensure that excessive polythene does not cause any gaps in the insulation itself.

If a shorter length is required, for example at the top or end of a wall, it is recommended to use a knife to cut through the DPC in the required position, and then to cut through the polythene and insulation using a small hand saw. The coloured polythene encapsulation does not need to be removed, and offers product identification once installed. Care should be taken to ensure the mineral wool is not damaged.

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