External Membranes and Drainage

Type A Structural Waterproofing – External Membranes for Below-Ground Protection

External membranes are a critical component of Type A structural waterproofing, providing a continuous barrier that protects basements, retaining walls, and foundations from water ingress. These high-performance membranes not only prevent moisture penetration but also help manage groundwater effectively, ensuring long-term structural durability.

Types of External Waterproofing Membranes

✔ Liquid-Applied Membranes – Seamless waterproofing solutions made from bitumen, polyurethane, or elastomeric coatings.
✔ Sheet Membranes – Pre-formed PVC, EPDM, or bitumen-based sheets, ideal for large, uniform surfaces.
✔ Self-Adhesive Membranes – Polymer or bitumen-based membranes with strong adhesion for detailed areas.
✔ Torch-On Membranes – Heat-applied modified bitumen membranes, creating a highly durable waterproof barrier.

External Drainage Membranes for Groundwater Management

✔ Dimpled Drainage Membranes – HDPE membranes with raised studs that channel water away from the structure.
✔ Geocomposite Drainage Membranes – A combination of a dimpled core and geotextile filter for optimal drainage.
✔ Cavity Drain Membranes – Creates a drainage cavity to direct water to sump pumps or drainage outlets.

Combined Waterproofing & Drainage Systems

✔ Integrated Waterproofing & Drainage Membranes – Dual-function membranes that prevent water ingress while managing hydrostatic pressure.

Why Choose Our Type A External Waterproofing Solutions?

🔹 Advanced Moisture Protection – Prevents water infiltration, dampness, and structural damage.
🔹 Durability & Longevity – Enhances the lifespan of below-ground structures.
🔹 Effective Drainage Control – Reduces hydrostatic pressure with advanced external drainage systems.

By using high-quality external waterproofing membranes, you can ensure long-term water resistance and structural stability for basements, foundations, and retaining walls.

📞 For expert advice on the best waterproofing membranes for your project, contact us today.