With the protection character of a volcanic activity, the glass fiber asphalt becomes mineral granules after the volcanic rock evolved into basalt. Nature endows it the characters of incredible beauty solid and resistance. Under the special disposal with ceramic glaze, the glass fiber asphalt tiles are put into the 5% acid base for 240 hours and exposed under the 500W light for 1,200 hours, and then are put into hot water of 800 (at last in the boiling water for 10 minutes). In the end, the asphalt tiles will hardly fade for added durability.

• The grass and moss will never appear on the surface.
• Other building materials are available.