Where suitable, the ceiling in a room may be treated like a wall and have wallpaper hung on the ceiling. Where more robust protection is needed, wallpaper can be adhered to the ceiling structure above a dropped ceiling, for example, and then covered by the layered combinations described above or by a spray-on PCF toughened polymer. Of course, those skilled in the art armed with knowledge of the shielded construction materials disclosed herein may use those materials in other combinations to achieve the desired level of protection while maintaining shielding integrity.