safeman wroteMy only experience in this field is having been held responsible for mildew damage to jewellery in a safe supplied by my company. Expert evidence subsequently placed the presence of moisture in the fact that although the safe had been opened for only a brief time, it was sufficient to allow humid air to be retained in the cool but less humid interior causing water vapour to form after the door was closed and that subsequently the safe had remained closed for a long period.
The safe body had a concrete fill not too dissimilar to yours. Not very helpful I’m afraid.
This sounds like a summertime problem. Being a garage in winter, it will get cold but not experience the wild swings of very cold nights and usually above freezing days.
I would think storage of precious metals/jewellery and documents would be okay, but not anything that might rust.
Or, conversely, any suggestions on how to singlehandedly move this up 3 steps into the house? I have no available help. But now it is not on a slab but above a basement. The floors in this house, being rather new and slipshod construction, might be considered questionable.
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