EPDM and PVC Waterproofing

PVC waterproofing membranes and EPDM are two of the most common systems for waterproofing roofs and terraces. These materials provide protection against moisture, but they have several drawbacks that can compromise the durability and effectiveness of the system.
Impermeabilización de EPDM

PVC Waterproofing Membrane

PVC is a plastic material commonly used in waterproofing due to its flexibility and initial resistance. However, over time, PVC tends to harden and crack, causing volume loss and the appearance of fissures, a condition that requires constant repairs. Additionally, to ensure proper installation of the PVC waterproofing membrane, a compression layer is needed, which increases the cost and lengthens the process.

EPDM Waterproofing Membrane

EPDM is a highly flexible synthetic membrane, but it is prone to tearing if a fissure occurs. This degradation process happens slowly but reduces the system’s durability over time. Additionally, EPDM requires specialized tools and precise installation to avoid issues at junctions with vertical surfaces or corners. Like PVC, it also requires a compression layer for the installation of coatings such as ceramics, which increases the overall cost.

Comparatives

Waterproofing with EPDM and PVC

  • Cracks and fissures issues
  • Additional layers
  • Specialized installation
  • Degradation in extreme climates

Revestech solution

  • Superior durability
  • No need for a compression layer
  • Simple and quick installation
  • Resistance at critical points
  • Adaptability to any climate
See Recommended Option

Common drawbacks of PVC and EPDM

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Cracks and fissures issues

Both PVC and EPDM are susceptible to cracks or tears over time, which compromises their waterproofing capacity.

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Additional layers

For both materials to be effective in placing ceramics or in high-traffic areas, an additional compression layer is required.

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Specialized installation

A high level of expertise is required for proper installation, including overlaps, welds, and mechanical fixings at joints and corners, which increases the cost and the risk of errors during the project.

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Degradation in extreme climates

These systems tend to lose effectiveness over the years, especially in areas exposed to severe weather changes, such as extreme temperatures or prolonged sun exposure.

Advantages of Revestech Waterproofing Membranes over PVC and EPDM

Although PVC waterproofing membranes and EPDM membranes are popular in the industry, Revestech waterproofing membranes represent a much more durable, resistant, and easy-to-install option. Here's why choosing Revestech is the best decision for your waterproofing projects:
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Superior durability

Revestech membranes do not suffer from degradation or cracking over time. They offer a lifespan of over 50 years, far surpassing the longevity of PVC and EPDM.

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No need for a compression layer

Unlike PVC and EPDM, Revestech membranes do not require additional compression layers for the installation of ceramics, significantly reducing both the cost and installation time.

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Simple and quick installation

Revestech membranes are much easier to install, without the need for specialized tools or complicated fixings. Additionally, they can be applied directly over the existing pavement, which speeds up the rehabilitation process and eliminates the need for stripping.

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Resistance to adverse conditions

While PVC and EPDM require special attention at joints and overlaps, Revestech membranes provide continuous, seamless waterproofing in critical areas such as corners, vertical surfaces, and joints.

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Adaptability to any climate

Revestech membranes are resistant to extreme climates, maintaining their effectiveness in high and low temperatures or with intense sun exposure, unlike PVC, which hardens over time.

Conclusion

Although PVC waterproofing membranes and EPDM membranes are common options for surface waterproofing, their limitations in terms of durability, the need for additional layers, and the risk of cracks make them less appealing in the long term. Revestech waterproofing membranes offer a much more durable, easy-to-install, and weather-resistant solution.

Choose the safety and durability of Revestech membranes and ensure effective waterproofing, without complications and without cracks.

Frequently Asked Questions

The PVC waterproofing membrane is used to create a barrier against water on roofs and terraces. While it is initially flexible, over time, PVC hardens and may crack, compromising its effectiveness. Revestech membranes are much more durable and do not suffer from this type of deterioration, providing long-term protection.

EPDM is a synthetic membrane used for waterproofing roofs and other surfaces. Although it is flexible, it can easily tear if cracks occur. Unlike EPDM, Revestech membranes are resistant to cracking and provide hassle-free waterproofing over the years.
EPDM is primarily used on roofs, coverings, and some flat surfaces. However, its need for maintenance and the potential for tearing over time make it less suitable for critical applications. Revestech membranes offer more reliable protection in these same scenarios.
Installing EPDM requires a clean, dry surface, along with mechanical or adhesive fixings, which complicates the process. In contrast, Revestech membranes are installed without the need for specialized tools and can be placed directly over the existing pavement, simplifying the construction process.
EPDM waterproofing has a limited lifespan, especially if cracks or tears occur. In contrast, Revestech membranes guarantee effective protection for over 50 years without the need for constant maintenance.
PVC membranes are used on roofs, terraces, and coverings. Although popular, PVC tends to harden and crack over time. Revestech waterproofing membranes are a more robust and durable alternative for these same projects.
PVC can last for several years, but its tendency to crack reduces its effectiveness over time. Revestech membranes, on the other hand, have a much greater durability, remaining intact for decades without issues of cracking or fissures.
PVC is vulnerable to the elements and extreme temperatures, causing it to harden and deteriorate. Revestech membranes are resistant to any climate, providing reliable protection in the harshest conditions.
PVC has limited resistance to chemicals and chlorine, making it less ideal for pools. Revestech membranes are designed to withstand harsh chemicals and ensure long-lasting waterproofing in all types of environments, including pools.

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