Shut eye acoustical shutters look like the best answer to soundproofing your sliding patio door.
Soundproofing glass sliding doors.
There are also security benefits by installing a soundproof sliding glass door.
In other words it prevents heat from coming through during summer and blocks the chilly air in winter.
If the doors have laminated glass then the security aspect is significantly increased.
With a field tested stc rating of 30 added to the rating of the door itself you should be approaching or exceeding a 60 rating.
As is the danger any time you work with glass there is always a chance of them breaking no matter how slight.
Insulation benefits that come from having a soundproof window.
Not only are they hindered by something like that but it ruins the point of them and the overall look.
The installation process is the same as with any ordinary curtain.
One reason is because these doors are primarily comprised of glass which is thinner than a standard wood door and thus requires more materials to effectively prevent the transmission of noise.
As mentioned soundproofing a sliding door is more challenging than soundproofing a standard hinged door.
Noise reduction of beyond 75 and upwards of 95 in some circumstances.
Air is a good insulator and by using the space in between the two glasses a high degree of soundproofing can be achieved.
Moreover you will not be forced to cover the doors with curtains to block sound.
On top of sound insulation they add thermal insulation as well.
Advantages of sliding glass doors.
The product is custom made to your measurements shipped fully assembled and simple to install.