Abstract: A kit for radio frequency shielding a door frame, such as a radio frequency attenuation kit, comprises: an astragal retainer fixed to a door, where the astragal retainer is configured to couple a first radio frequency shielding gasket such that the first gasket overlaps a seam between the door and the door frame; and a second radio frequency shielding gasket which contacts the door when in a closed position, where the second gasket is fixed between a Z bracket and radio frequency tape; wherein the radio frequency tape is applied to the door frame.