"
Cork is not a good idea since it retains moisture."
Nonsense, those cork/rubber pads (I linked above) are used in the HVAC industry with heating and A/C units for vibration control, cork floats and does not absorb moisture.
https://en.wikipedia.org/wiki/Cork_(material)
Nonsense, those cork/rubber pads (I linked above) are used in the HVAC industry with heating and A/C units for vibration control, cork floats and does not absorb moisture.
https://en.wikipedia.org/wiki/Cork_(material)