'Type C' Waterproofing is defined in BS 8102:2009 as ‘drained protection’ which is achieved by the incorporation of a drained cavity within the basement structure.
The basement wall must provide enough primary resistance to water ingress to ensure the cavity only accepts a controlled amount of water or dampness.
Water is collected in the cavity between the external wall and an internal lining (Waterproof Membrane), and diverted to a suitable drainage point.
The use of Waterproof Membranes (also known as 'Tanking Membrane' or 'Cavity Drain Membrane') does not allow pressure to build up against the internal construction and the air gap allows the structure to breathe, and to some extent to dry out.
Our range of Waterproof Membranes are fixed to walls or loose laid on floors with little preparation required to the substrate. We always, however, recommend the application of a Lime Inhibitor to prevent limescale build up in between the membrane studs and within the drainage system (perimeter channel, sump chamber, pump etc).
Once the Waterproof Membrane has been fitted, wall surfaces can be dry lined or plastered directly and floors can be screeded or a floating dry board system installed.
Here at Platinum Chemicals, we carry a large stock of market leading branded Basement Waterproof Membranes from very reputable manufacturers such as Newton® and Isola Platon®.
We now stock our own 'Platinum Branded' Basement Waterproof Membranes, offering customers cost effective alternatives, but ensuring the quality remains of the highest standard.
Our Platinum CV8 Membrane is a high quality Cavity Drain Membrane manufactured from high-density polyethylene (HDPE).
Platinum CV8 is impermeable and resistant to the usual chemicals in the building construction. Studs are formed in a regular pattern on the one face of the product. The studs are spaced at approx. 25mm centres in both directions.
Our Platinum CV8-MESH Membrane is a high quality Cavity Drain Waterproof Membrane comprising of high density polyethylene membrane with a strong polyethylene mesh heat-welded during the manufacturing process to the surface of one side.
The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.
Platinum CV8-Mesh is suitable for the waterproofing of earth retained walls and vaulted soffits and is guaranteed against deterioration for 30 years, with a life expectancy of the design life of the building (DIN 9001:2000).
Platinum Building Chemicals Ltd | Waterproofing Membranes
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