Get sound and sound isolation with these products. For walls, ceilings, doors, pumps, compressors, cars, and much more. You can also read our help topic noise insulation to the outside. When it comes to noise insulation between rooms, there are no or very fewadditional benefits to using convoluted or pyramid foam materials. You will need heavy foam materials which are as thick as possible for this purpose in order to be able to effectively insulate noise. The lower the frequencies and the louder the sound source, the thicker the foam material should be.