Newton CDM is a BBA certified Type C cavity drain waterproofing system that includes 40m2 of membrane per roll and a specially designed range of tapes, fixing plugs and ancillaries. 
 
Purchase Options:
 
Stud Depth- The system 500 membrane is available with 3mm or 8mm deep studs
 
Kit / Membrane Only- The kit option comes with 400Nr specialist-engineered fixing plugs with waterproof seals and a roll of compatible jointing and sealing tape.
 
Mesh or Clear Membrane- Choose a mesh membrane if using as a surface for direct plastering or rendering, or a clear (non-mesh) membrane where the wall finish to the damp proof membrane is timber battens, a dry-lining frame or block wall. 
 
Why Use The Newton Cavity Drain Membrane System?

The Newton CDM system does not seek to hold back water pressure. Water is controlled and managed by the depressurisation spaces created by the studs on the membrane. The membranes do more than provide a dry inner skin to separate the wet substrate and dry interior, with the studs acting more like stilts to allow for this natural movement of water rather than a pressure-resisting barrier. The draining of the water away from the system is therefore vitally important, and if designed correctly is the safest method of waterproofing available.
 
Newton 503 (3mm stud depth) and 508 (8mm stud depth) membranes are suitable for use internally above or below the ground to retaining walls, vaulted soffits and floors. 
 
The cavity drain membrane can be used within our Newton Type C waterproofing system that also includes Newton drainage and pumping systems. Please see the Newton Installation Manual for details on fixing and finishing of the product and contact us for specialist support.
 
Key Benefits
 
Does not require extensive and damaging preparation to the wall surface
Speed of installation
Provides vapour control and when used with humidity control systems is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009
Resistant to chemically aggressive groundwater, efflorescing salts and hydrocarbon contamination
Rot-proof and resistant to root penetration
Shallow stud profile for where space is at a premium