NBS Source
Type Y Stone Mullion Assembly Cavitray

Application

For use at the head of a cast stone or natural stone window/ door surround.

Description

A preformed multiple cavity tray system designed to maintain damp course integrity at the head or head and label course in cast stone or natural stone window or door surrounds.


Features and benefits:

  • An arresting barrier above any label course.
  • A cavity tray above the opening head and bedded on any structural support angle.
  • A vertical damp proof course (DPC) barrier between the back of the opening head and internal leaf lintel.


The Cavity Tray Ltd range of stop ends and weep vents is compatible with the arresting barrier and cavity tray.

General information

Color

Black

Material

Polypropylene

Size

The system can be tailored to suit all cast stone assemblies. Consult Cavity Trays Ltd for details and recommendations.

Uniclass 2015

Pr_25_57_21_66 Preformed cavity traysPrimary

CAWS

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 Enhanced data

Material

Polypropylene.

To fit cavity width

50 mm.

____ mm.

The system can be tailored to suit all cast stone assemblies. Consult Cavity Trays Ltd for details and recommendations.

Length (effective)

The system can be tailored to suit all cast stone assemblies. Consult Cavity Trays Ltd for details and recommendations.

-

Location

As drawing ___.

As schedule ___.

Masonry opening head assembly

As clause ___.

Insert requirements

Literature

Protecting the Building Envelope Volume 28 (cavity tray, damp proofing, ventilation and cavity closers)

Protecting the Building Envelope Volume 28 (cavity tray, damp proofing, ventilation and cavity closers)

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