I have been working up my Long term storage ammo supply for a while now and it is starting to take up a lot of closet space along with everything else gun related. Right now I have several good 50 cal and 30 cal ammo cans full of various calibers for long term storage. I don't want to move them to the garage and there is nowhere else inside the house to put it other than my closet. I have been considering moving the ammo into the crawl space under the house. What do you think? The crawl space is small and occasionally there might be servicemen down there working on HVAC, Electric or Cable. I really like my surplus ammo cans, however I am thinking a little more protection is in order, any suggestions? Waterproofing? Cold or hot issues? Any help would be greatly appreciated.