COMPARISON BETWEEN NON-FIRED COLOR TILES AND TRADITIONAL CLAY TILES: WHICH IS THE OPTIMAL CHOICE FOR MODERN CONSTRUCTION?

A roof is not only a protective structure shielding a building from weather conditions but also a key element that defines the overall architectural appearance. For decades, traditional clay tiles were almost the only option. However, advancements in construction material technology have introduced a superior alternative: non-fired colored tiles (cement tiles).

To help investors, architects, and contractors make the most informed decision, this article provides an in-depth comparison of these two materials based on key criteria: technology, durability, aesthetics, and economic efficiency.

1. Material Nature and Manufacturing Technology

The most fundamental difference between the two types of tiles lies in their raw materials and production methods.

Traditional tiles (clay tiles):
Made from natural clay mixed with water, shaped, and fired in kilns at extremely high temperatures (typically above 1000°C). This firing process consumes significant fossil energy and emits large amounts of CO₂, contributing to environmental pollution.

Non-fired colored tiles:
Produced from a mixture of high-strength cement, sand, water, and reinforcing fibers. The mixture is formed using high-pressure hydraulic pressing technology and cured under natural conditions. This process does not involve high-temperature firing, generates no harmful emissions, and fully meets green building material standards.

2. Detailed Analysis and Evaluation Criteria

To determine the most suitable roofing material, it is essential to evaluate based on real requirements of modern construction projects.

2.1. Aesthetic Appeal and Architectural Versatility

Traditional clay tiles:
Typically available only in characteristic brick-red or dark red tones (unless glazed at higher cost). These tiles are suitable for traditional architecture, temples, and wooden houses with historical or cultural significance.

Non-fired colored tiles:
Thanks to advanced coating technologies (such as Nano Silicon coating), these tiles offer a wide color palette: blue, moss green, gray, chocolate brown, and deep black. This diversity allows architects to match various styles, from neoclassical villas to modern Japanese-style and Thai-style roofs, while also meeting homeowners’ feng shui preferences.

2.2. Weight and Structural Load

Traditional tiles:
Smaller in size (approximately 22 tiles/m²), with a total weight ranging from 45–50 kg/m². This requires a highly robust roof frame system, increasing costs for steel or timber structures.

Non-fired colored tiles:
Designed with larger dimensions (only about 9–10 tiles/m²), with an average weight of 35–40 kg/m²—approximately 20% lighter than traditional tiles. Reduced roof load significantly lowers structural costs while maintaining safety.

2.3. Water Resistance, Moss Prevention, and Mechanical Strength

Traditional tiles:
Clay has a porous structure with micro air pockets, leading to high water absorption (often above 10%). When saturated, it becomes an ideal environment for moss growth, quickly degrading aesthetics. Additionally, clay tiles are brittle and prone to cracking under impact or temperature fluctuations.

Non-fired colored tiles:
Hydraulic pressing creates a dense concrete structure, reducing water absorption to below 7%. The Nano-coated surface provides self-cleaning properties (lotus effect), seals micro-pores, prevents water penetration, and effectively inhibits moss growth. Their flexural strength is significantly higher, minimizing breakage during transportation and installation.

2.4. Dimensional Accuracy and Installation Process

Traditional tiles:
Shrinkage during firing often causes slight warping and inconsistent dimensions. Installation requires skilled labor for alignment and adjustment, making it time-consuming.

Non-fired colored tiles:
Manufactured using precision steel molds, ensuring uniform dimensions across millions of tiles. Interlocking water barriers fit perfectly, enabling faster installation and preventing rainwater backflow.

3. Conclusion: Which Is the Optimal Choice?

No material is universally perfect for all projects; the choice depends on usage and architectural style:

Traditional clay tiles retain their unique value and are irreplaceable for historical, spiritual, or traditional Vietnamese-style constructions.

Non-fired colored tiles, especially high-quality products from Nasaki Vietnam, represent the most comprehensive and optimal solution for modern residential and commercial projects. With superior moss resistance, color durability, aesthetic versatility, and cost efficiency, they are establishing dominance in future construction trends.