[soil]

The ground has been used for housing construction in Japan for many years. Recently, new materials called diatomite begin to be used for a ceiling and a wall. It petrifies carcass of phytoplankton. It has countless small holes in the surface. So it has control of humidity and deodorization nature It is easier to maintain than vinyl crossing. Moreover, there is a tile which steamed by high pressure what used the ground as materials. It can cut down energy rather than it burns for manufacture. Moreover, it has a sense of natural soil.it can use again after it was use and return natural soil.

[paper and cloth]

Cloths which use Paper and the wallpaper have permeability, and its textures are good and they have the feature that a tension pile is possible. If we are ask what is natural paper, we may reply the Japanese paper made from KOUZO and MITSUMATA .But in addition to this, it is made from California cotton and recycled paper. Its maintenance does not only need to repaint color　and, unlike the case where it re-covers, does not need to take out a lot of rubbish.

[grass]

You say tatami if you are asked the building materials using grass. it is desirable to choose what does not use agricultural chemicals,preservative and mathball. However, the function to suppress generating of ticks or mold need. Recently,natural materials was made which such as what added wood vinegar liquid on both sides of the fiber sheet and the charcoal made granular of a coconut and what gave insect control nature and controlling humidity.As grass' growth is forward, and it is a wallpaper material which does not affect forest resources.So it attracts attention.

[wood]

The cork tile which used the bark of a cork oak as materials has moderate elasticity, and it is hard to injure,and easy to clean up. Since there is also water resistance, it is used for the bathroom or the washroom.