NBS Source
Methane Barrier

Application

For stopping gases from continuing to rise within the exterior wall and cavity.

Description

Preformed pethelene radon / methane cavity barrier lengths and angles for incorporation within cavity wall to arrest rising gases. Extends inwardly to link with compatible oversite membrane, thus creating a protective shield throughout footprint of building.


Features and benefits:

  • Proportioned and shaped to encourage rising methane gas to be arrested and discharged via brick ventilators.
  • Links with methane resistant oversite membrane.

General information

Color

Black

Material

Petheleyne

Uniclass

Pr_25_57_21_35 Gas-resistant damp-proof coursesPrimary

CAWS

F30/360 Gas resistant damp proof courses/ cavity trays

F30/54 Gas resistant dpcs/ cavity trays

Specification data - Gas-resistant damp-proof courses Enhanced data

Material

Pethelene

Cavity width

75 mm.

100 mm.

___ mm.

As drawing __.

Vertical rise

225 mm.

___ mm.

As drawings ___.

Angle returns

External (450 x 450 mm).

Internal (450 x 450 mm).

External (__x__ mm).

Internal (__x__ mm).

As drawing ___.

Special cloaks

Corners, steps, vertical links, party wall situations with integral wall channels, etc. Cavity Trays Ltd recommend submission of drawings to determine requirements.

None.

As drawing ___.

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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