Dahlia tubers moldy

I just checked my tuber and see there are getting moldy. I thought there were in a dry place but apparently not. This is what I am thinking, bring them inside the house and put them in my very warm and dry furnace room, till they are nice and dry. Then try keeping them in the garage ( they were in the shed before ). I don't think this is ideal but leaving them or just moving them to the garage is worse.
Any ideas???

 

It happens, but they're generally tough-as-nails tubers. Rinse off the mold, slice out any rot, dip them in a bleach solution (10% bleach to water), let them dry and put back in storage. It helps, when storing, not to have the tubers touching each other.