Sika® CD Cavity Drain

High-density, polypropylene (PP) cavity drainage system internal drainage membrane that creates a secondary internal wall and floor to regulate water after it has penetrated the structure. The system directs penetrating water into a drainage system and collection sump before a pump releases water from the building for disposal.

The system comprises:

– Sika® drainage products:

• Sika® CD pump kit – single sump and pump kit with alarm.

• Sika® CD battery back-up kit.

• Sika® CD channel.

• Sika® CD channel outlet – for discharging from channel into sump.

• Sika® CD channel jetting point – maintains the drainage system.

– Sika® fixing and sealing components:

• Sika® masonry plug.

• Sika® plaster plug.

• Sika® CD rope.

• Sika® CD tape.

• Sika® CD plaster tape.

• Sika® CD corner seal.

Benefits:

• Cavity drain provides protection from the ingress of water, vapour and gases.

• Suitable for use where the substrate does not have the strength to resist stresses caused by water pressure.

• Can accommodate slight movements within the structure.

• Minimal surface preparation is required.

• Loose-laid and fixed to the wall using surface plugs.

• Once fitted, wall surfaces can be dry-lined or plastered and floors can be screeded.

• Can be used to grades 1–3, and is suitable for high water table according to BS 8102:2009.

• BBA- and BSI-approved.

Applications:

Can be used where the conditions or design of the structure make traditional tanking methods difficult to use. Suitable for above- and below-ground usage, including;

• Walls and floors of basements.

• Cellars.

The design of the structure should allow access for maintenance.