Got Water Build Up? We've Got The Solution

HIFLOW DRAINAGE CELL – BACK IN STOCK

Water pressure behind retaining walls, planter boxes, podium slabs, and basement structures is one of the leading causes of waterproofing failure. Without a proper drainage system, water becomes trapped behind membranes, increasing hydrostatic pressure and eventually causing leaks, membrane delamination, structural damage, and costly remedial repairs.

HIFLOW Drainage Cell was designed to eliminate that problem.

Manufactured from high-density polyethylene (HDPE), HIFLOW is a high-performance dimpled drainage roll system engineered to create a continuous drainage void that allows water to move freely away from the structure while protecting the waterproofing membrane underneath.

Used across retaining walls, green roofs, podium decks, basement walls, planter boxes, and underground structures, HIFLOW provides reliable drainage performance while helping reduce pressure build-up behind waterproofing systems.

WHAT IS HIFLOW DRAINAGE CELL

HIFLOW is a heavy-duty drainage and protection sheet manufactured from high-density polyethylene (HDPE) designed to:

• remove excess water,

• relieve hydrostatic pressure,

• protect waterproofing membranes,

• and create a controlled drainage path behind structures.

The dimpled core structure creates a permanent void space between the membrane and surrounding soil or backfill material. This allows water to flow efficiently toward drainage outlets instead of building up against the waterproofing system.

Unlike traditional drainage methods that can clog or collapse over time, HIFLOW maintains a consistent drainage cavity designed for long-term site performance.

The result is:

• improved drainage efficiency,

• reduced membrane stress,

• and greater long-term waterproofing protection.

WHAT MAKES HIFLOW THE BEST

TRUE DRAINAGE PERFORMANCE

HIFLOW creates a continuous drainage cavity that allows water to move freely behind retaining walls and below slab systems.

Key Benefits

Creates continuous void space for water movement

• Allows controlled water discharge

• Reduces water retention against structures

• Maintains drainage efficiency under load

Without a proper drainage void, water becomes trapped and pressure begins building directly against the membrane system.

PRESSURE RELIEF

Hydrostatic pressure is one of the most destructive forces affecting waterproofing systems.

HIFLOW helps protect membranes by:

• relieving water pressure,

• reducing stress on waterproofing,

• and minimising long-term membrane fatigue.

This helps prevent:

• membrane failure,

• blistering,

• leaks,

• water ingress,

• and structural deterioration.

HIGH FLOW RATE PERFORMANCE

Designed for demanding site conditions, HIFLOW stores and disperses water efficiently during heavy rainfall and high-water events.

Advantages

• High flow capacity

• Fast water movement

• Reduced risk of drainage overload

• Consistent performance under pressure

This is especially critical for:

• retaining walls,

• basement systems,

• and podium slab drainage applications.

WHERE HIFLOW IS USED

HIFLOW is suitable for a wide range of waterproofing and civil drainage applications.

Common Applications

• Retaining walls

• Planter boxes

• Podium decks

• Green roofs

• Basement walls

• Underground car parks

• Civil drainage systems

• Below-ground waterproofing protection

• Subsoil drainage systems

• Landscape retaining structures

Its flexibility and lightweight roll format make it suitable for both vertical and horizontal drainage applications.

WHY DRAINAGE MATTERS ON SITE

Most waterproofing failures are not caused by the membrane itself.

They are caused by uncontrolled water pressure.

Without proper drainage:

• water builds up,

• pressure increases,

• membranes become stressed,

• and leaks eventually occur.

This often leads to:

• membrane delamination,

• water ingress,

• structural cracking,

• mould growth,

• and expensive remedial work.

HIFLOW eliminates that risk by managing water before pressure becomes a problem.

By creating a dedicated drainage path, the system allows water to move away from the structure efficiently instead of becoming trapped behind the waterproofing system.

KEY FEATURES

Technical Specifications

Thickness

15mm drainage void profile for effective water movement.

Compressive Strength

250 kPa compressive resistance designed for structural drainage applications.

Flow Rate

Flow rate greater than 150 (ASTM-4716).

Roll Size

15m x 1.5m roll dimensions for fast installation and reduced joins.

Lightweight Design

Easy to handle, cut, position, and install on-site.

HDPE Construction

Manufactured from high-density polyethylene for durability and long-term performance.

HOW HIFLOW WORKS

The HIFLOW system is designed for fast and straightforward installation.

Installation Process

Step 1 – Install Waterproofing Membrane

Apply approved waterproofing system to the structure.

Step 2 – Roll Out HIFLOW

Lay HIFLOW directly over the cured waterproofing membrane.

Step 3 – Overlap Joints

Overlap adjoining sheets approximately 100mm to maintain continuous drainage performance.

Step 4 – Secure in Position

Fix drainage roll in place as required for the application.

Step 5 – Backfill

Install gravel or suitable drainage material against the HIFLOW system.

The dimpled structure creates a controlled drainage cavity that directs water away from the structure efficiently while protecting the membrane underneath.

WHO USES HIFLOW

HIFLOW is trusted by professionals across waterproofing, construction, landscaping, and civil infrastructure industries.

Common Users

• Waterproofers

• Builders

• Landscapers

• Civil contractors

• Basement installers

• Retaining wall contractors

• Green roof installers

• Remedial waterproofing contractors

Its ease of installation and reliable drainage performance make it ideal for both residential and commercial projects.

WHY HIFLOW SELLS OUT

HIFLOW continues to be one of the most in-demand drainage protection systems because it delivers:

• reliable drainage performance,

• fast installation,

• membrane protection,

• and long-term site reliability.

Reasons Contractors Choose HIFLOW

Critical For Waterproofing Systems

Proper drainage is essential for compliant waterproofing installations.

Reduces Failures

Controls water pressure before it damages the membrane system.

Reduces Call-Backs

Helps prevent future leaks and remedial repairs.

Fast Installation

Lightweight rolls improve handling and reduce installation time.

Multi-Application Use

Suitable for retaining walls, podiums, green roofs, basements, and more.

BACK IN STOCK – LIMITED ROLLS AVAILABLE

HIFLOW Drainage Cell is now back in stock and available for immediate supply.

Due to high contractor demand, stock moves quickly across:

• retaining wall projects,

• basement systems,

• podium slabs,

• and remedial waterproofing jobs.

Available Roll Size

15m x 1.5m

Ideal For

• Retaining walls

• Podium drainage

• Basement waterproofing

• Green roofs

• Planter boxes

• Civil drainage systems