On Sun, 11 Jan 2015 13:29:58 -0800 (PST), jtpr
wrote:

This is a wall in the West side with a screen porch around it and a deck above it (second floor). The siding is Hardie Plank. I'm not really sure about the weather the first time, but now it's ~25-35 degrees (S Nh).

Inspect the ledger board and caulk if you need to. Water may getting
behind....attached to the house.