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High waterproofing

The air roof has high waterproofing performance.

The air roof tile is made by press molding of the high pressure of 150t. There is not a gap and Air-roof tile is made as a tile without the curve of high quality.

High pressure one-shot dehydration molding makes Air-roof the best waterproofing performance.

With the latest rain invasion examination machine, we tested it. When we compared Air roof with general Cray roof tile, it identified quantity of rainwater invasion 1/300 to be the following surprising performance.

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      Rain invasion examination machine

More detailed another examination every wind velocity.

The detailed data of the waterproofing performance examination.

Examination contents.
The examination fixes precipitation with 150mm/h.
It is raised strength by the wind velocity by 5m/s every progress in time for 10 minutes.
The quantity of the water which came in roof 1 square meter measures it each time.

The air roof was quantity of 1/300 rainwater invasion by an examination of 50 minutes of wind velocity 20~40m/s.