French Doors?

I need to have have doors with windows for my piano room. My idea is to have my carpenter / cabinet maker build French doors. I was thinking of using 2 panes of sliding glass door replacement windows (fairly cheap, double pane and readily available) and making wood frames for them. Is this a bad or good idea? Thanks

Doors follow the same laws of physics as other walls for sound control; you want mass, air, mass. period. This means that two SINGLE, thicker panes of glass between the two areas you want isolated, will give better results than two DOUBLE pane pieces of glass - every extra air gap you add, even with the same total space from side to side, will make the LF attenuation WORSE. It's also very difficult to calculate the expected result because of the interaction of the different layers and air gaps. If you just mean using one french door with double pane glass, then the thicker the total of two glasses plus air gap, the better; but you won't see a great deal of isolation without increasing the air gap to several inches, even a foot. It depends on the amount of isolation you need; if you need a lot, I would plan on single-pane glass in each of TWO sets of french doors, set on separate wall frames so that the glasses are 8-12" apart. Good door seals all the way 'round are also a necessity to keep from losing performance due to air leaks... Steve

Thanks for your reply, I won't have any room for any more than about a four inch wide door. I'm not looking for total isolation, just enough to fix mistakes without a total change in sound. Are there plans availible? I've seen French doors in lots of studios. Thanks again.

I second that, any recommended brands for a french door and french sliders?

Bump.. I am interested in exactly this same thing. Any plans out there? What glass and where? Thanks.