Curved Cavitray On Plan

Curved Cavitray On Plan

Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Cavity Trays Ltd

Preformed, curved cavity trays for curved walls for use at various levels and applications.

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+44 (0)1935 474769

A preformed curved damp proof tray with integral stop end and water check for use with concave or convex curved cavity masonry.

Concave or convex cavitrays in four types to suit generic applications:

  • Curved common openings – window and door openings, usually with a curved lintel. This type is accommodated by a curved version of the Type C cavitray.
  • Curved arresting barriers – similar to common openings but the base leg of the cavity tray does not project through to the outside of the masonry leaf. The function of the arresting barrier is to arrest and minimize any water wash above features intruding wholly or partly into the cavity, e.g. over the top of a horizontal cavity fire barrier or full fill cavity insulation. This type is accommodated by a curved version of the Type Q arresting barrier.
  • Curved horizontal intersections – Modified versions of the Type G general purpose cavitray are available for use at horizontal intersections with a curved wall. A typical application is the abutment of a bay window.
  • Curved sloping abutments – The intersection of a pitched roof against curved masonry is complex necessitating a three dimensional approach – satisfied by individually angled versions of the Type X gable abutment cavitray.


  • Ready to use, custom made module cavitrays to suit project specific configurations.
  • Cavity width adjustment ensures compatibility.
  • Available with attached lead flashing.

General information


Ready to use, custom made module cavitrays to suit project specific configurations

Cavity width adjustment ensures compatibility

Available with attached lead flashing

Uniclass 2015

Pr_25_57_21_66 Preformed cavity traysPrimary


F30/370 Preformed cavity trays

F30/385 Junction cloaks/ stop ends for preformed dpcs/ cavity trays

F30/56 Preformed cavity trays

Specification data - Preformed cavity trays

Product Reference

Curved Cavitray On Plan


As on drawing ___

Cavity width

50 mm

75 mm

100 mm

140 mm


As on drawing ___


As on drawing ___

As schedule ___

Standard product features


Black polypropylene and petheleyne. Lead flashing to BS EN 12588 1.75 mm or 1.8 mm blue colour code (equivalent to BS 1178 code 4).

Product Options

Size/ configuration:

Modules are purpose made to suit individual projects. Cavity Trays Ltd requires the submission of dimensioned elevations and plans showing the curved masonry and any abutting roofs. The company will be pleased manufacturer can to advise on suitable product designs and any need to damp proof and flash the curved abutment.

Third party certifications
  • Quality Assurance - certficate : CE European Technical Approval applies to specific models
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