Hi, I have a problem with moisture in my flat. I believe this will cause damage to my card collection.

So far I have kept my decks in cardboard boxes with some bags of silica gel scattered around.
We also have a dehumidifier running 24/7 to keep the place liveable.

But the moisture levels creep up during summer in Norway, and I have violent nightmares concerning moist decks and ruined cards.

Does anyone have any further ideas for dry and cool deck storage?

No expert on deck storage but perhaps rice buckets for cards.

Wow, that sounds bad.

If the silica and dehumidifier doesn't do it then perhaps your only choice is to pack them into airtight boxes or bags on a dry day. I suppose individual baggies (small plastic bags) would be best, to allow you to look at them. I've noticed antique collectors keep their decks in plastic baggies and they're cheap too!