Ultimate Guide to TPO Waterproofing Membrane

TPO waterproofing membrane is a high-performance flexible sheet produced using advanced polymer processing technology. It is made from thermoplastic polyolefin (TPO), a blend of ethylene-propylene rubber and polypropylene, offering excellent weather resistance and weldability.

Reinforced with a polyester mesh fabric, the membrane provides outstanding tensile strength and durability. Its light-colored, smooth, and reflective surface improves energy efficiency by reducing heat absorption.

As a chlorine-free and eco-friendly material, it promotes safer and more sustainable construction. Heat-welded seams ensure a strong, watertight bond for long-lasting protection.

Industry-specific attributes:

Attribute Value
After-sale Service Other
Project Solution Capability Others
Application Waterproof projects, wall roof
Design Style Contemporary

Other attributes:

 

Attribute Value
Place of Origin Shandong, China
Warranty 1 Year
Material TPO
Feature Water resistant, Anti-aging, High Strength, Eco Friendly
Shape ROUND
Roofing product type Roofingfelt
Brand Name Huafeng
Model Number 1.2mm 1.5mm 1.8mm
Product Name Thermoplastic Polyolefin Waterproofing Membrane
Usage Building Materials and Real Estate
Feature Waterproof
Packing Plastic outer packaging
MOQ 1000 Square Meter
Weight 25KG
Shape Columnar
TPO Waterproofing Membrane

The material inherits the long-term weather resistance and durability of ethylene-propylene rubber while retaining the weldability of polypropylene. The addition of a polyester fiber layer between two TPO layers enhances its physical properties, significantly improving tensile strength, fatigue resistance, and puncture resistance.
TPO Waterproofing Membrane
TPO Waterproofing Membrane
Serial number
Item
Indicator
H
L
P

1

Minimum resin layer thickness on middle fabric (mm): ≥
——
——
0.40

Tensile Strength

Maximum Tensile Force (N/cm) ≥
——
200
250
Tensile Strength (MPa) ≥
12.0
——
——
Elongation at Maximum Force (%) ≥
——
——
15
Elongation at Break (%) ≥
500
250
——

3

Dimensional Stability (Heat Treatment) (%) ≤
2.0
1.0
0.5

4

Low Temperature Flexibility
No cracking at -40℃

5

Water Impermeability
0.3MPa water pressure, 2 hours – no leakage

6

Impact Resistance
0.5kg·m impact – no water penetration

7

Static Load Resistance
——
——
20kg static load – no water penetration

8

Peel Strength (Seam Joint) (N/mm)
≥4.0 N/mm or membrane failure
3.0

9

Tearing Strength (Right Angle) (N/mm)
60
——
——

10

Trapezoidal Tear Strength (N/mm)
——
250
450

11

Water Absorption (70℃, 168h) (%) ≤
4.0

12 Heat Aging (115℃)

Duration
672h
Appearance
No blistering, cracking, delamination, adhesion, or holes
Tensile Force Retention Rate (%) ≥
——
90
Tensile Strength Retention Rate (%) ≥
90
——
——
Elongation at Maximum Force Retention Rate (%) ≥
——
——
90
Elongation at Break Retention Rate (%) ≥
90
90
——
Low Temperature Flexibility
No cracking at -40℃

13Chemical Resistance

Appearance
No blistering, cracking, delamination, adhesion, or holes
Tensile Force Retention Rate (%) ≥
——
90
90
Tensile Strength Retention Rate (%) ≥
90
——
——
Elongation at Maximum Force Retention Rate (%) ≥
——
——
——
Elongation at Break Retention Rate (%) ≥
90
90
——
Low Temperature Flexibility
No cracking at -40℃

14Artificial Weathering (Accelerated Aging)

Duration
1500h
Appearance
No blistering, cracking, delamination, adhesion, or holes
Tensile Force Retention Rate (%) ≥
——
90
90
Tensile Strength Retention Rate (%) ≥
90
——
——
Elongation at Maximum Force Retention Rate (%) ≥
——
——
90
Elongation at Break Retention Rate (%) ≥
90
90
——
Low Temperature Flexibility
No cracking at -40℃
a) Static Load Resistance (required only for mechanically attached roofing membranes)
b) For single-ply roofing systems, the required artificial weathering test duration is 2,500 hours.
It is primarily designed for permanent, high-performance waterproofing applications on roofs of various types, including industrial, civil, and public buildings.

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