Summary of the causes of the spill plate piece . Width does not fit on the sheet metal sheet roof. Plate sealing solution and keep the angle to the horizontal is not there was rice without sealing it.
The cause of the leak to the specimen. sheet Not fit the width of the sheet metal sheet roof. sheet grout is thoroughly melted and store. has the rice fields showed no grout at all.
Conclusion the cause of leakage target sheet. Width fit sheet metal sheet of the roof. sheet grout melt and keep no corner thoroughly. the rice fields found no grouting behind.