reduction that is desired for most applications in nursing homes hospitals and offices u215b inch thick plastic sound insulating sheets may provide from 10 to 12 db of sound shielding however in environments where industrial noise of a significantly greater magnitude need to be controlled thicker sheets made out of denser material may be desirable industrial application sound shielding curtains 20 because of their increased weight may be difficult to extend and retract in applications where weight of the sound shielding curtain 20 becomes a factor similar results can be obtained by using two or more layers of curtains constructed in accordance with concepts of the present invention in some cases the sound shielding curtains 20 can be quite heavy a cart configured with a movable platform may be used to support the weight of a sound shielding curtain 20 while each of the curtain fasteners is disconnected from the mount 21 the cart may be provided with a platform that stores horizontally but can be made to stand vertically by way of a pivot or hinge in order to promote ease of installation and removal of heavy sound shielding curtains straps configured with snaps may be further integrated with the moveable platform in order to fasten the folded curtain to the platform when the platform is in other.