Type K Circular Cavitray Cavity Trays - Cavity TraysType K Circular Cavitray Cavity Trays - Cavity Trays

Type K Circular Cavitray

  • Horizontal and Vertical DPC in one unit.
  • Standard dimensions include 470mm, 600mm, 630mm, 675mm, 700mm, 750mm, 800mm, 900mm
  • Special sizes available.
  • Polypropylene DPC Black.
  • Optional polystyrene thermal collar.
  • 360 degree total protection.

Cavitray damp course for circular windows.


The Type K cavitray is manufactured from solid DPC and is supplied in one piece ready to receive the circular window. It fits snugly around the window frame, providing a 360 degree barrier. The inside skin of the cavity wall and the sides of the circular window frame are protected from dampness. The unique design of the Type K cavitray accommodates numerous cavity widths and numerous frame positions. The cavitray travels vertically downwards within the cavity, until it passes the bottom of the circular window. At this point the hinged base section projects forward and guides water to discharge safely. Type W weepvents may be incorporated to aid cavity wall ventilation if appropriate.

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Where to buy

Our cavity trays are available from suppliers up and down the country.

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