Abstract
I presented a hypothesis,that the cause of patterns appeared in ceramic siding is the indoor vapor,at Japan Society for Finishings Technology's grand meeting in 2013 Oct.I formulated the hypothesis,and presented at the meeting,because I could not get old siding then,so could not investigate it.In this time,getting old sidings,I examined them as equally as two years ago,and I noticed the hypothesis has an inconsistency.And continued observations,I have come to a conclusion that the cause of patterns appeared in ceramic siding is condensation and adherence of the outdoor vapor,that is adherence of dew.And succeeded to emerge patterns experimentally,thei are reported.