Type J DPC Support and Closer
- Standard lengths 2400mm.
- J1 closer make it suitable for use in cavities up to and including 90mm.
- J2 is a larger closer suitable for use in cavities up to and including 100mm.
- J3 is a bespoke closer – All dimensions available.
- Material PVCU (Polypropylene bespoke).
USE
Parapet construction requires a DPC immediately under the coping. BS5628:Part 3 qualifies the manner in which the DPC must be supported. The Type J closer fulfils the requirements of the British Standard, and also the N.H.B.C. performance standard, chapter 6.1-S4 (b). The conventional cavity parapet is normally terminated with copings, under which a DPC is bedded and positioned. The width of the DPC must be sufficient to slightly overhang the width of the parapet masonry. Support of the DPC is required where it crosses the cavity.
Description
Type J DPC Support and Cavity Closer
The Type J DPC Support and Closer is a high-performance solution designed to provide superior damp-proofing and insulation for cavity wall constructions. This preformed cavity closer integrates an effective DPC (Damp-Proof Course) barrier, ensuring optimal moisture control and enhanced thermal efficiency in masonry builds.
Designed for Parapet Applications & Compliance with Standards
Parapet construction requires a DPC immediately under the coping, and BS5628: Part 3 specifies how this DPC must be supported. The Type J closer fully complies with British Standards and the N.H.B.C. performance standard, Chapter 6.1-S4 (b).
Typically, parapet masonry is capped with copings, beneath which the DPC is bedded. For effective moisture control, the DPC width must slightly overhang the parapet masonry, and support is required where it crosses the cavity—a function that the Type J Cavity Closer is specifically engineered to perform.
Available in standard and bespoke sizes:
J1: 130mm x 30mm x 2mm/2.5mm
J2: 150mm x 30mm x 2mm/2.5mm
J3: Bespoke – 180mm x 30mm x 2mm
Downloads and Documents
Datasheet PDF636.46 KB Download file
DWG/CAD47.55 KB Download file
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