Have you lived in a wood-framed house before? I ask because I've had clients from Asia who are accustomed to concrete or stone construction and have never experienced wood framing before. It's bouncy and creaky and generally feels less solid that concrete or stone. And, as Kurt pointed out, if they used floor trusses or I-Joists, then it's *particularly* bouncy. There are things you can do to address this, but the bounciness itself is not a symptom of a larger problem. Yes. I did live in a wood framed apartment for about five years. I also went to some open houses to feel the bounce. It feels like that my house is a little bit more unstable, especially in the kitchen. It's no big deal. Fill it with anything. Good to know it. Thanks. In your last picture, I see caulk in the joint. It looks like the installer put caulk on the end of one plank and slid the other one up to it, making a caulk sandwich. That's *exactly* what the siding manufacturer specified in 2006 when your house was built. When the caulk fails, as yours has, you were expected to re-caulk it. The new standard, which requires flashing, is a much better solution. It's easy to install the flashing after the fact. Any reasonably intelligent contractor should be able to do this for you. yes, I can see some caulk left there. I never used a contractor before, so what kind of contractor should I use? A general one or any special one? Thanks. I don't know. But in the pictures you've posted, I don't see anything that's even slightly alarming.