NBS Source
Advantage Range Unleaded Gable Abutment Trays

Application

  • For use at stepped and staggered pitched roof gable abutments.
  • Designed to suit standard 75 mm high brickwork courses.


Description

A range of preformed, self-supporting, unleaded, moulded DPC cavity trays for use at stepped and staggered pitched roof gable abutments.


The range includes:

  • Catchment trays: For building in at the bottom of a slope to catch water and direct it to the outside of a masonry wall via weep holes.
  • Intermediate trays: Available in either hand and built in at each course over the length of the abutment rake.
  • Ridge tray: Used to straddle a roof ridge abutment.
  • External angles: Used in place of unleaded catchment trays when commencing laying from the corner of a building.
  • Internal angles should commencement be from an internal masonry corner.


Features and benefits:

  • No attached lead flashing; allows for in situ fitment of flashings at an appropriate time in the construction sequence.
  • Variable cavity upstand to accommodate a wide range of cavity widths.
  • Optional polystyrene strips to aid insertion and fixing of flashing.

General information

Color

Black

Material

Injection moulded solid DPC.

Polypropylene

Size

Standard trays are 330 mm long, and can be used for roof pitches of 15° upwards.

Uniclass

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.

75 mm.

100 mm.

140 mm.

Location

As shown on drawing where any roof abuts cavity masonry.

Types

Catchment left hand.

Catchment right hand.

External angle.

Internal angle.

Intermediate left hand.

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Rake out strips

An optional polystyrene strip can be included as an attachment to the bed course element of the tray After the tray is built in, the strip can be raked out to provide a void into which a flashing can be terminated and secured.

Not required.

Required.

Profile

Available in a range of profiles; a selection is illustrated in technical literature. Cavity Trays Ltd can advise on requirements and submit recommendations.

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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