I have a flat house on a flat lot. My middle bedroom began leaking water thru the baseboard. We have had a huge amount of rainfall in So Cal recently. I saw some mild water pooling outside the window and dug asmall trench to channel some away. I also put up a gutter drain along the roof. Should I caulk the outside with some Henrys? Also I have a large bird of paradise outside the window which may be causing problems (roots taking up draining space? Suggestions other that hoping for another drought.