Newton CDM 508 Cavity Drain Membrane – 8mm Waterproofing Solution
The Newton CDM 508 Membrane is a BBA-certified, 8mm cavity drain waterproofing membrane, widely recognized as the most commonly used membrane within the Newton CDM System. This high-performance solution is designed to protect below-ground structures from water ingress while also serving as an effective gas barrier against radon, methane, and hydrocarbon gases.
Built for long-term durability, the Newton CDM 508 Membrane comes with a 30-year guarantee and a life expectancy of at least 50 years (DIN 9001:2000), ensuring reliable waterproofing for basements, cellars, tunnels, and more.
Key Benefits
✔ No extensive surface preparation required – quick and efficient installation.
✔ Provides vapour control, enabling a Grade 3 dry environment to BS 8102:2022.
✔ Certified barrier against hydrocarbon gases, radon, and methane.
✔ Lightweight yet durable, with excellent resistance to water and contaminants.
✔ Part of the Newton CDM System, a maintainable and adaptable waterproofing system.
Typical Applications
🔹 Basements & Cellars – Ideal for internal wall and floor waterproofing.
🔹 Vaults & Arches – Provides effective damp and vapour control.
🔹 Tunnels & Underground Structures – Prevents water ingress and gas infiltration.
🔹 Listed & Heritage Buildings – Suitable for refurbishment projects with minimal structural impact.
Newton CDM System – Overview
The Newton CDM System is a maintainable Type C waterproofing solution, complying with BS 8102:2022 for below-ground waterproofing. It comprises:
✅ Cavity Drain Membranes – Captures and channels water ingress.
✅ Drainage Components – Directs water into sump chambers or safe drainage systems.
✅ Pumping Systems – Ensures collected water is efficiently removed from the structure.
For complete protection, Newton recommends professional installation by a Newton Specialist Contractor (NSBC).
Product Data
| Code |
Size |
Colour |
Weight |
Area |
| M1-5-48 |
Roll 2.4m x 20m |
White |
500g/m² |
48m² |
