NBS Source
Type M Cavitray

Application

  • For use over standard meter boxes (gas or electricity).
  • Suitable for traditional masonry cavity or timber frame construction.

Description

Horizontal protection against damp penetration where a cavity wall accommodates an electricity or gas meter consumer supply control unit (meter box).


Features and benefits:

  • Self-supporting upstand adjusts to cavity width (50–160 mm).
  • Unobstructed cavity compartment area does not encourage mortar bridging.
  • Available with flashing attachment.
  • Compatible with Type L stop ends and Cavity Tray Ltd weep vents.
  • DPC - polypropylene, colour black.

General information

Color

Black

Material

Polypropylene

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

Polyethylene.

To fit cavity width

50–160 mm.

Height

210 mm.

Cavity upstand.

Length (effective)

900 mm.

Tray length.

Attached lead flashings

Not required.

Required.

Optional flashing attachment: Lead flashing to BS EN 12588 1.75 mm or 1.8 mm blue colour code (equivalent to BS 1178, code 4).

Drop length

150 mm.

___ mm.

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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