Hot and Cold Insulation
Insulation can be considered to be a "protective" procedure in the sense that what is protect in "Process temperature" we have established the fact that specific temperature ,within very small tolerance, are necessary element of a successful process. There are long runs of piping, large vessels, etc. that must maintain specified process temperatures to make the process work.
Soundproofing is any means of reducing the intensity of sound with respect to a specified source and receptor. There are several basic approaches to reducing sound,increasing the distance between source and receiver, using noise barriers to block or absorb the energy of the sound waves, using damping structures such as sound baffles.