DELTA MS Studded Protection Sheet

DELTA®-MS studded protection sheet is a high-performance solution developed to protect waterproofing layers and provide drainage in foundations and structural elements.

Used in numerous construction projects since the 1980s, this system delivers long-lasting performance thanks to its high-density polyethylene (HDPE) structure and strong mechanical properties. With a wide range of applications from foundation walls to tunnel structures, DELTA®-MS provides both protection and drainage functions in a single system.

What is DELTA MS?

DELTA®-MS is a protection and drainage sheet manufactured from HDPE material. Its specially designed studded surface structure optimizes load distribution while protecting waterproofing layers against external forces.

With a compressive strength of approximately 250 kN/m², it prevents damage to insulation systems and enables controlled water drainage.

In foundation applications, DELTA®-MS can be used for:

Protecting waterproofing layers
Creating a drainage layer
Serving as a replacement for lean concrete cleaning layers

Key Advantages

High Durability

Resistant to decay under soil conditions
Provides resistance against chemicals and root penetration
Remains stable and functional for many years in natural environments
Chemically neutral and suitable for applications requiring protection against groundwater

Balanced Load Distribution

Approximately 1,800 studs per m² distribute pressure evenly
Reduces point loads on waterproofing layers
Extends the service life of insulation systems

Fast and Easy Installation

Designed with straight overlapping edges for practical installation
Diagonal stud structure allows flexible application in different directions
Reduces installation time and labor requirements

Alternative to Lean Concrete

Can be used as a cleaning layer beneath foundations
Helps reduce additional excavation and labor costs
Supports better concrete curing conditions and improves application quality

Drainage and Water Control

Provides controlled water guidance in double-shell structures
Creates a reliable drainage layer in tunnels and retaining wall systems
Helps protect structures against moisture-related damage

Application Areas

DELTA®-MS is suitable for:

Foundation walls and retaining walls
Reinforced concrete curtain walls
Shoring and excavation support systems
Tunnels and double-shell engineering structures
Protection of thermal and waterproofing insulation layers
Cleaning layer applications beneath foundations

Technical Specifications

Property	Value
Material	High-Density Polyethylene (HDPE)
Color	Brown
Stud Height	Approximately 8 mm
Compressive Strength	Approximately 250 kN/m²
Air Volume	Approximately 5.3 l/m²
Temperature Resistance	-30°C / +80°C
Roll Dimensions	20 m x 2 m

Why Choose DELTA®-MS?

Decades of proven field experience
High mechanical strength and reliable performance
Multi-purpose use for protection, drainage and cleaning layers
Economical and practical installation advantages
Long-lasting protection for underground structures

Frequently Asked Questions (FAQ)

What is DELTA®-MS used for?

DELTA®-MS is used to protect foundation waterproofing systems, provide drainage and create a protective layer beneath foundations.

How long does DELTA®-MS last?

Under normal soil conditions, the product maintains its structure and performance for many years thanks to its durable HDPE material.

What is the compressive strength of DELTA®-MS?

The product has a compressive strength of approximately 250 kN/m².

Can DELTA®-MS be used in tunnel applications?

Yes. It can be safely used in double-shell tunnel systems as a drainage and water control layer.

Is DELTA®-MS difficult to install?

No. Thanks to its specially designed edge structure and lightweight sheet format, it can be installed quickly and easily.

DELTA®-MS provides a reliable and durable protection solution for foundations, tunnels and underground structures by combining mechanical protection, drainage performance and long-term structural safety.