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Intermediate Cavity Trays

Verified by manufacturer 7 months ago

Type GW 291 LBS RH Long Block / Stonework Intermediate Tray Right Hand.

Manthorpe Building Products Ltd Variant:

A range of preformed intermediate cavity trays with BBA Certification.

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+44 (0)1773 303000 Website

Description

A range of preformed intermediate cavity trays with BBA Certification. Manufactured from injection moulded polypropylene, the trays are available for stepped blockwork or stone details.


Features and benefits:

  • Supplied with or without lead attachment.
  • Suitable for pitches 17.5 to 50°.
  • Assessed by the British Board of Agrèment.


Product options:

- Type GW291 RH Intermediate Trays Right Hand:

  • Designed for building up the finished roof line in a stepped fashion and incorporate an upstand at one end only, allowing water to travel down the cavity tray system.
  • Type GW 291 Intermediate tray features an injection moulded mortar trap which ensures a clear water path, by reducing the risk of mortar droppings and other debris from blocking the tray.
  • The tray has a front mortar clip, removable once the mortar has set, leaving a 25 mm deep aperture into which lead is inserted and secured with lead wedges.
  • The GW 291 Intermediate tray can be supplied unleaded or with short or long lead, stapled and sealed to the tray.
  • Suitable for pitches 17.5 to 50°, 75 mm coursing.

- Type GW292 LH Intermediate Trays Left Hand:

Specification as GW 291 RH but left handed.

- Type GW 291 SBS RH Short Block / Stonework Intermediate Tray Right Hand:

  • Designed for larger course heights, typically 150 or 225 mm in either stonework or blockwork, and incorporates an upstand at one end only.
  • The flexible perpend protector attached to the tray prevents driving rain penetrating the outer wall and tracking across the masonry.
  • The tray has a unique front mortar clip that can be removed at any time once the mortar has set leaving a 25 mm deep aperture into which the lead is inserted into and secured with lead wedges.
  • The GW 291 SBS Intermediate tray can be supplied unleaded or with short or long lead, stapled and sealed to the tray.

Suitable for pitches:

  • 35 to 50°, 225 mm coursing.
  • 25 to 50°, 150 mm coursing.

- Type GW 292 SBS LH Short Block / Stonework Intermediate Tray Left Hand:

Specification as GW 291 SBS RH above but left handed.

- Type GW 291 LBS RH Long Block / Stonework Intermediate Tray Right Hand:

  • Designed for low pitches in typically 150 mm or 225 mm in either stonework or blockwork, and incorporates an upstand at one end only.
  • The flexible perpend protector attached to the tray prevents driving rain penetrating the outer wall and tracking across the masonry.
  • The tray has a unique front mortar clip that can be removed at any time once the mortar has set leaving a 25 mm deep aperture into which the lead is inserted and secured with lead wedges.
  • The GW 291 LBS Intermediate tray can be supplied unleaded or with short or long lead, stapled and sealed to the tray.

Suitable for pitches:

  • 17.5 to 34°, 225 mm coursing.
  • 12 to 24°, 150 mm coursing.

Type GW 292 LBS LH Long Block / Stonework Intermediate Tray Left Hand:

Specification as GW 291 LBS RH above but left handed.

General information

Color

Black

Material

Polypropylene

Uniclass

Pr_25_57_21_66 Preformed cavity traysPrimary

CAWS

F30/370 Preformed cavity trays

Specification data - Preformed cavity trays

Third party certification

British Board of Agrément.

Material

Polypropylene.

Height

150 mm.

225 mm.

Attached lead flashings

Not required.

Short lead code 4.

Guidance for specification option:

75 mm drop.

Standard lead code 4.

Guidance for specification option:

150 mm drop.

Long lead code 4.

Guidance for specification option:

300 mm drop.

Standard lead code 5.

Guidance for specification option:

150 mm drop. Code 5 lead is supplied to special order.

Long lead code 5.

Guidance for specification option:

350 mm drop. Code 5 lead is supplied to special order.

Pitch

17.5–34°.

Guidance for specification option:

225 mm coursing.

12–24°.

Guidance for specification option:

150 mm coursing.