We are turning an exterior porch into an interior space. One thing we would like is to put French doors in the bedroom opening onto the new space. We would like these doors to block the sound from the rest of the house, however, obviously so that anyone sleeping would not be disturbed. Does anyone know about French doors that block sound? How well do they work? Right now we have 40-year-old sliding glass doors (dual glazed) in that space but every sound travels right through them.
Thanks in advance.