The origin of roofing tile which has been covering temples and castles in long history.

The way to express "TRADITIONAL"

This kind of tiles born in Sounth Asia and it is brought to Japan in about 1400years ago. We call it "HONBUKI" and it means "formal roofing". It is a combination of concave tiles and convex tiles. We use the clay which is based on Mikawa area's soil as the ingredient. The Mikawa clay gives hard and profound feeling to the roofs, and it makes the tiles what must be on traditional architecture of Japan like temples, shrines, and fortresses.

More formal, more tight design.

Formal roofing has geometric beauty, the smoked silver color is compatible also with modern structures.


Image-Concave Tile
Concave Tile
  Image-Convex Tile
Convex Tile
Property and Dimensions
  Convex tile
8×9(sun) 9×10(sun) 10×11(sun)
Length 282±4.0 303±4.0 333±4.0
Width 240±4.0 270±4.0 303±4.0
Function Length - - -
Function Width - - -
Property Water
Absorption Rate (%)
8 or lower 8 or lower 8 or lower
Fracture Load
1800 over 1800 over 1800 over
of Tiles
pcs / m2 - - -
Weight piece (kg) 2.6 3.3 3.8
m2 (kg) - - -
Packing a bundle (pcs) 4 4 4
a pallet (pcs) 360 360 360

Water Absorption Rate by JIS A 5208 is less than 12%.
Function Length is same as batten cleat on the roof. It is 2~3mm longer than actual Function Length.
The unit "sun" is Japanese old measurement unit for length. 1sun = about 1.193inch.
These are the data of the concave tiles. The quantity on a palette may be different depending on plants.

Our Works

Image-Smoked Silver

Smoked Silver

Image-Antique Silver

Antique Silver

See other photo

To improve the performance, our products could be changed without any announce.
Please note that the color of real products could be slightly different to the photograph on this website.