ARC
ARC Party Wall DPC L 200mm
£25.00 (ex VAT)
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ARC Party Wall Cavity Barrier
The ARC Party Wall DPC L-Shape 200mm (PW200L) is an L-shaped cavity fire barrier with an integral damp proof course (DPC), designed for staggered party wall junctions in masonry construction. It is specified for cavities up to 200mm wide.
Key Features
L-shaped profile
Designed for staggered party wall junctions where adjoining dwellings are set back from one another.
Integral DPC
Combines the cavity barrier with a damp proof course in one component.
Rockfibre insulation
Manufactured from non-combustible rockfibre mineral wool with a colour-coded polythene sleeve.
Friction-fit installation
The manufacturer’s stated application uses a friction fit, with no compression fit required.
Typical Applications
Staggered party walls
For L-shaped cavity junctions in masonry construction where the party wall line steps or changes position.
Residential construction
Used in suitable terraced, semi-detached and apartment developments where the specified junction matches the product’s certified application.
Product Specifications
| Manufacturer | ARC |
|---|---|
| Product code | PW200L |
| Product type | L-shaped party wall cavity barrier with integral DPC |
| Application | Staggered party wall junctions in masonry construction |
| Maximum cavity width | 200mm |
| Dimensions listed by manufacturer | 205 × 250 × 250 × 200 DPC × 1200mm |
| Length per piece | 1200mm |
| Pieces per pack | 2 |
| Packs per pallet | 10 |
| Sleeve colour | Green |
| Insulation material | Non-combustible rockfibre mineral wool |
| Thermal conductivity | 0.037 W/mK |
| Fire integrity | Up to 240 minutes in the relevant masonry application* |
| Insulation performance | Up to 120 minutes* |
| Fire classification | Euroclass A1 (as stated in ARC technical information) |
| Test standard | EN 1366-4 |
| Third-party certification | IFC IFCC 1728 |
*Performance claims apply only to the relevant tested/certified construction and installation. Check the latest manufacturer documentation for the project-specific specification.
Installation Guidance
- Confirm that the cavity width and staggered junction suit the PW200L.
- Position the L-shaped barrier to follow the external cavity at the party wall junction.
- Ensure adjoining lengths are tightly butted and that gaps are not left around the barrier.
- Handle and cut the product carefully to avoid damaging the insulation.
Install in accordance with the latest ARC instructions and the relevant certified application. The accuracy of the surrounding brickwork is important to achieve the required fit.
Fire Performance and Certification
ARC technical information identifies testing in accordance with EN 1366-4, up to 240 minutes fire integrity in the relevant masonry construction, Euroclass A1 insulation classification and third-party certification under IFCC 1728.
Frequently Asked Questions
What is ARC PW200L used for?
It is an L-shaped party wall cavity barrier with integral DPC, designed for staggered party wall junctions in masonry construction.
What is the maximum cavity width?
The manufacturer’s listing specifies cavities up to 200mm wide. Confirm the actual built cavity and approved application before installation.
Does the product include a DPC?
Yes. The damp proof course is integral to the L-shaped barrier.
How long is each piece?
Each length is 1200mm. ARC’s listed pack configuration is two lengths per pack.
What is the difference between PW200L and PW200?
PW200L has an L-shaped profile for staggered party wall junctions. Check the straight PW200 version for a conventional straight junction.
Need Help Choosing an ARC Cavity Barrier?
If you are unsure whether you need the L-shaped PW200L or a different ARC Party Wall DPC size, contact the Wade Building Supplies team before ordering.
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