This invention concept is the densest insulation material, like a foam board type of material that would be used to block the transmission of sound, only to block the transmission or receiving of any light waves or radio frequency waves, through walls, doors, windows, or ceilings. This technology would be used for rooms that store secrets, so spy satellites cannot detect what is being viewed on the documents inside of the room. Modern spy satellites can view inside a building’s structure and read a newspaper on someone’s desk in HD video quality, and the agent would be able to read the text off the newspaper, from a facility 3,000 miles away.