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Newton CDM 503 Membrane

Save £102.22 inc.VAT

Size: 2 x 20mm
Price:
Sale price£156.78 inc.VAT Regular price£259.00 inc.VAT

Description

Newton CDM 503 Membrane – BBA Certified Cavity Drain Membrane

Premium 3mm Waterproofing Membrane for Basements & Retaining Walls

The Newton CDM 503 Membrane is a BBA-certified (94/3010) cavity drain membrane designed for below-ground waterproofing in basements, cellars, retaining walls, tunnels, and vaulted soffits. As part of the Newton CDM System, this high-quality membrane provides a maintainable and highly effective Type C waterproofing solution.

With a 3mm stud profile, it is ideal for applications where space is limited, offering a fast installation process with minimal substrate preparation.


Key Benefits

BBA Certified (94/3010) – Guaranteed 30-year lifespan, with an expected 50-year service life.
Quick & Easy Installation – Requires minimal wall preparation for faster application.
Highly Durable & Resistant – Rot-proof, resistant to root penetration, aggressive groundwater, salts, and hydrocarbons.
Vapour Control & Humidity Management – Contributes to a Grade 3 internal environment as per BS 8102:2022.
Space-Saving Design3mm stud depth ensures suitability for restricted spaces.
Part of the Newton CDM System – Integrates with drainage & pumping solutions for complete waterproofing.


Typical Applications

Basements & Cellars
Vaulted Soffits & Retaining Walls
Tunnels & Arches
Damp-Proofing & Gas Control Applications


Product Data & Specifications

  • Product Code: M5
  • Roll Size: 20.0m x 2.0m (40m² coverage)
  • Colour: White/Translucent
  • Compressive Strength: 320 kPa
  • Thermal Conductivity: 0.461 W/mK
  • Water Vapour Resistance: >3020 MNs/g
  • Fire Resistance: Euroclass E
  • Chemical & Oxidation Resistance: 100%

Compliant with BS 8102:2022 – Structural Waterproofing Standards

The Newton CDM System fully complies with BS 8102:2022, ensuring maintainable, long-term waterproofing solutions. The British Standard recommends that a waterproofing specialist should be part of the project design team to ensure full system integration.

Recommendation: Installation should be carried out by a Newton Specialist Contractor (NSBC) for optimal performance.


Newton CDM System – Overview

The Newton Cavity Drain Membrane (CDM) System is a fully maintainable basement waterproofing solution, certified to BES 6001 by BRE Global. This system consists of:

Cavity Drain Membranes & Drainage – Captures and redirects water ingress.
Pumping & Control Systems – Works with Titan-Pro sump and Newton pumps for water removal.
Gas Proofing – The Newton PAC-500 System integrates ground gas and waterproofing protection.

Associated products

CDM 503 Associated Products:

For further information please call our customer services team, 01268 472358.

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