How can I sound proof sliding glass doors that face a LOUD freeway?
First of all you need to actually come to the determination that the sound coming in from the freeway is through the sliding glass doors,and not through any other source. If that is the fact then with being an apartment and who pays what is your next consideration. Otherwise the only real solution is to take the doors out and have the double paned storm windowed doors built in as the replacement. Due to the costs involved with this procedure , wouldn’t be in your best interests. So you may want to have some kind of a shanti built that is installed at an angle from the top of the arcadia doors at a 45 to 70 degree angle downward to as close to the ground as possible. I would recommend either an acoustic soundboard or similar and to alter the waves of sounds coming in I would also consider enclosing the sides as well. And the addition of blackout curtains ( which are lined with a thin rubber based material ) will also add to the db’s already reduced substantually.
