I agree - we would need to know more about the layout of your home to provide an answer. Some questions for you:
Is your bedroom above a garage or below an attic (as Marian noted below)?
How far from ... read more
First, clean out the existing caulk the best you can with a utility knife, flat razor or a putty knife. To get it extra clean and depending on what type of caulk was there before, you can use baking ... read more