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Koyo Ibushi Japanese Tiles

Koyo Ibushi

Koyo Ibushi is a Japanese ceramic wall tile collection rooted in traditional ibushi kawara roofing, refined for contemporary architectural surfaces.

Its smoked silver finish is not applied. It is formed through carbon during firing, creating a surface with depth, softness and natural variation.

The material responds quietly to light, developing character over time rather than remaining static.

From roofs to architectural walls

Ibushi kawara has long been used in Japanese architecture, most notably for temple and castle roofing.

Koyo Ibushi brings this material language onto the wall, allowing the same restrained, mineral surface to define contemporary interiors.

It is not designed to dominate a space. Its strength comes from restraint, texture and the way the surface responds to changing light.

Himeji Castle showing traditional Japanese ibushi kawara roof tiles

Smoked silver, not metallic coating

At the final stage of firing, the tiles are smoked inside the kiln. Carbon bonds with the ceramic surface, creating the Ibushi silver finish.

This is not a coating or applied finish. It is a transformation of the material itself.

The surface reflects light softly, with a restrained shimmer that changes across the day and under artificial lighting.

Koyo Ibushi Harima Yama tiles in a Breitling retail interior in Zurich

Soil, carbon and craftsmanship

Koyo Ibushi is produced from carefully balanced clay blends, refined and adjusted before firing.

Surfaces are worked by hand prior to firing, with adjustments made according to temperature, humidity and material behaviour.

The result is controlled variation, not uniform repetition.

Why Koyo Ibushi costs more

Koyo Ibushi is not a standard ceramic tile with a decorative finish applied to the surface.

The material requires controlled firing, a specialist smoking process and hand refinement before firing.

The material is produced in relatively small volumes using methods derived from traditional ibushi kawara production rather than mass ceramic manufacturing.

The cost reflects a process that creates a surface with depth rather than a surface effect.

Used in retail and hospitality interiors

Koyo Ibushi works particularly well in retail and hospitality environments where material presence is important.

It is often used for bars, counters, feature walls and reception areas, where a smaller surface area needs to create a strong architectural impact.

Unlike many specialist Japanese tiles, Koyo Ibushi can often be specified without large minimum order quantities, making it practical for focused architectural features and smaller hospitality applications.

Koyo Ibushi Arare tiles used in Leica Kyoto retail interior
Koyo Ibushi Arare smoked silver tiles in Leica Kyoto retail setting

Specified through Mittsu

Koyo Ibushi is not widely distributed outside Japan.

Mittsu supplies the collection for projects in the UAE, UK and Europe, with direct support for specification, samples and supply.

Every enquiry is handled directly by a senior team member with in-depth knowledge of Japanese tiles, production methods and application.

Koyo Ibushi is defined by material, not decoration. A surface shaped by soil, carbon and fire, refined for contemporary architecture.

Availability and lead times vary by project. Please check the collection or contact Mittsu Japanese Tiles.