The Most Asked Questions About Epoxy Terrazzo

The Most Asked Questions About Epoxy Terrazzo

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The Most Asked Questions About Epoxy Terrazzo

A Practical Guide for Everyone

 

Epoxy terrazzo is increasingly chosen for contemporary architectural and interior projects due to its durability, design flexibility, and refined appearance. At VIA.ZZO, we receive recurring questions from architects, designers, and clients who want to better understand how epoxy terrazzo works and whether it is the right solution for their projects.

Below, we address the most frequently asked questions—structured to reflect the way we design, engineer, and deliver terrazzo systems at VIA.ZZO.

1. What Is Epoxy Terrazzo?

Epoxy terrazzo is a composite flooring system made of natural or recycled aggregates (approximately 80% of the mix) bound together with an epoxy resin matrix (around 20%). Unlike traditional cement terrazzo, epoxy terrazzo is non-porous, lighter, thinner, and provides superior bonding strength. The VIA.ZZO epoxy terrazzo system is engineered to deliver high aesthetic precision, color consistency, and long-term performance for demanding interior environments.

2. How Is the Mix Achieved?

The terrazzo mix is created by combining carefully selected aggregates—such as marble, glass, mother-of-pearl shells, mirror, and other materials—with an epoxy resin that can be in almost any RAL color. These components are mixed in controlled proportions to achieve the desired visual and technical performance.

Custom mixes are developed based on:

  • Design concept and architectural intent
  • Aggregate type and size
  • Color palette
  • Performance and usage requirements

3. Can I Have a Color Chart or a Sample Catalog? What Should I Expect?

No—VIA.ZZO does not work with a standard color chart or fixed sample catalog. This is a conscious choice that reflects the unlimited design potential of epoxy terrazzo.

What we offer instead:

  • Base colors in almost any RAL shade
  • Variable aggregate types, sizes, and densities
  • Fully customized designs driven by architectural creativity

Because every terrazzo surface is unique, a traditional catalog cannot accurately represent the true customization potential of epoxy terrazzo. For this reason, we develop project-specific samples for each client and architect, based on detailed discussions and design intent. Samples that do not fully match the client’s expectations are never wasted—they often become reference points for future projects. Our showroom includes a wide range of such samples, serving as a starting point for new design conversations.

4. How Is Epoxy Terrazzo Installed?

Epoxy terrazzo installation is a multi-step, highly controlled process:

  • I. Substrate preparation (mechanical grinding or shot blasting)
  • II. Application of moisture mitigation and crack suppression membranes
  • III. Placement of divider strips (if required)
  • IV. Installation of the epoxy terrazzo mix
  • V. Curing, grinding (dry &wet), polishing, and final surface treatments

The VIA.ZZO system follows strict technical procedures to ensure a seamless, durable, and visually flawless surface. VIA.ZZO is also the only European member of the National Terrazzo and Mosaic Association (NTMA), the organization that defines standards, specifications, and best practices for terrazzo floor and wall systems worldwide. More details about NTMA can be found on our website.

5. What Is the Final Thickness?

Epoxy terrazzo systems are thinner than cement-based terrazzo. For standard terrazzo, the final thickness typically ranges between 13 and 15 mm, depending on aggregate size and project requirements. For decorative systems such as Palladiana or Scarpa, the final thickness is approximately 20 mm. This reduced thickness makes epoxy terrazzo ideal for renovations and projects with strict height limitations.

6. Does the Substrate Matter When Installing Terrazzo?

Absolutely. The substrate is critical to the long-term performance of epoxy terrazzo and must comply with specific technical parameters:

  • Recommended support substrate: reinforced concrete, minimum class C20/25
  • Slopes must ensure natural water drainage toward gutters, siphons, or green spaces
  • Correct execution of lower substrate layers (earth, stone, ballast, etc.)
  • Flatness tolerance: ±5 mm within a 3 m radius
  • Substrate humidity: maximum 5%

While the VIA.ZZO system includes advanced moisture mitigation and crack suppression membranes, it cannot compensate for structural or mechanical deficiencies in the supporting layer.

7. Where Is Epoxy Terrazzo Ideal to Use?

Epoxy terrazzo is designed primarily for interior applications, including:

  • Commercial spaces (retail, hotels, offices)
  • Public buildings (museums, airports, hospitals)
  • Residential interiors (living areas, kitchens, bathrooms)

Its seamless appearance, durability, and low maintenance requirements make it ideal for high-traffic environments.

8. Is Epoxy Terrazzo Slippery?

Although epoxy terrazzo appears smooth and polished, it is not inherently slippery. VIA.ZZO terrazzo systems achieve slip resistance ratings of R12–R13, suitable for both dry and wet surfaces. This ensures compliance with safety standards without compromising aesthetics.

9. Can Epoxy Terrazzo Be Used with Underfloor Heating?

Yes. Epoxy terrazzo is fully compatible with underfloor heating systems when correctly designed and installed. Its thermal conductivity allows efficient heat transfer, making it a comfortable and durable solution for heated interior spaces.

10. Can Epoxy Terrazzo Be Installed Outdoors?

Epoxy terrazzo is not recommended for exterior use due to its sensitivity to UV exposure, temperature variations, and moisture. For outdoor applications, cement-based terrazzo or alternative systems are more appropriate. VIA.ZZO can advise on the most suitable solution depending on the project context.

11. What Is the Difference Between Cement Terrazzo and Epoxy Terrazzo?

Key differences include:

  • Thickness: epoxy terrazzo is thinner
  • Curing time: epoxy cures faster
  • Porosity: epoxy is non-porous
  • Design flexibility: epoxy offers a wider range of colors and aggregates

Cement terrazzo is generally better suited for exterior or traditional applications, while epoxy terrazzo excels in modern interior environments.

12. How Much Does Epoxy Terrazzo Cost?

The cost of epoxy terrazzo depends on several factors:

  • Aggregate type and level of customization
  • Surface area and project complexity
  • Substrate condition
  • Design details and finishing requirements

While the initial investment may be higher than conventional flooring, epoxy terrazzo offers exceptional longevity, low maintenance costs, and long-term value.  Average cost (Romania & EU): 250–480 EUR / sqm + VAT, depending on system type, thickness, location, and design specifics.

13. How Long Does Epoxy Terrazzo Last?

When properly designed, installed, and maintained, epoxy terrazzo has an expected lifespan of 50 years or more. Its non-porous structure, high mechanical strength, and resistance to wear make it one of the most durable interior flooring solutions available. Within the VIA.ZZO system, the use of moisture mitigation and crack suppression membranes further extends the floor’s service life by protecting it from common substrate-related failures.

14. What Maintenance Does Epoxy Terrazzo Require?

Epoxy terrazzo requires minimal maintenance compared to most flooring systems. Routine cleaning involves sweeping or vacuuming, followed by damp mopping with mild, pH-neutral detergents. No waxing or aggressive chemical treatments are necessary. Periodic professional polishing can restore the original gloss and refresh the surface after many years of use.

15. Can Epoxy Terrazzo Be Repaired or Refreshed?

Yes. One of the key advantages of epoxy terrazzo is its repairability. Localized damage can be repaired without replacing the entire floor, and the surface can be re-polished or re-finished to restore its original appearance. This makes epoxy terrazzo a long-term, cost-efficient solution for commercial and public spaces.

16. How Long Does Installation Take?

Installation time depends on surface area, design complexity, and substrate condition. However, epoxy terrazzo generally allows for faster installation and curing compared to cement-based terrazzo. Once installed, the system reaches usable strength quickly, making it suitable for projects with tight construction schedules. As a reference, a classic epoxy terrazzo floor covering approximately 100 sqm typically requires around 14 days to be fully installed, including substrate preparation, membrane application, terrazzo installation, curing, grinding, polishing, and final surface treatments.

17. Is Epoxy Terrazzo a Sustainable Flooring Solution?

Yes. Epoxy terrazzo is considered a sustainable and environmentally responsible flooring solution. It incorporates natural and recycled aggregates, has a long lifespan, and generates minimal waste over its lifecycle. The VIA.ZZO system uses non-toxic, VOC-free materials, contributing to healthier indoor environments and supporting sustainable building certifications. It can contribute to the U.S. Green Building Council’s (USGBC) credits for new construction and to achieving Leadership in Energy and Environmental Design (LEED) certification – a globally recognized green building rating system.

18. Can Epoxy Terrazzo Be Used on Walls, Stairs, or Custom Elements?

Yes. Beyond floors, epoxy terrazzo can be applied to vertical surfaces, staircases, steps, and custom architectural elements such as benches, counters, or integrated furniture. This versatility allows designers to create continuous, cohesive surfaces and strong visual identities within a project.

19. Are Joints Required in Epoxy Terrazzo Floors?

Yes and no. Joints are a necessary part of most terrazzo installations, serving both functional and aesthetic purposes. However, for surfaces no larger than approximately 100 sqm, epoxy terrazzo can often be poured without joints. In standard installations, joints accommodate substrate movement and help control cracking. Within the VIA.ZZO system, divider strips are carefully integrated into the design: they are grinded and grouted together with the terrazzo, creating a seamless and uniform surface. Additionally, divider strips can be intentionally used as design elements, simultaneously providing a functional role and enhancing the visual appeal of the floor.

20. Is Epoxy Terrazzo Suitable for High-Traffic Areas?

Absolutely. Epoxy terrazzo is specifically suited for high-traffic environments such as airports, shopping centers, hospitals, educational facilities, and office buildings. Its resistance to abrasion, impact, and heavy foot traffic makes it one of the most reliable flooring solutions for demanding interior applications.

Conclusion

Epoxy terrazzo is a flooring solution that combines performance, design freedom, and durability. Through the VIA.ZZO system, this material is engineered to meet modern architectural demands while maintaining timeless appeal. Understanding its characteristics ensures informed decisions and successful, long-lasting projects.

Key Features of VIA.ZZO Terrazzo

  • Durability: 50+ years lifespan
  • Maintenance: Easy cleaning using mild detergents
  • Flexibility: Suitable for horizontal and vertical surfaces
  • Design Options: Endless colors and custom designs
  • Environmental Impact: Eco-friendly, non-toxic, VOC-free
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