A few years ago my buddy had a small barn built on his property.
He said that it was going to be used for storage and within no time he had it filled to the brim.
He had stuff from his parents’ apartment and his Grandparents too that needed to be kept and he said he didn’t want to pay for a climate controlled storage component any longer. He assumed that the items would be good so long as they were kept up off the ground on shelves, but many of the items were keepsake ones and photos too. I warned him that the change of temperature from summer time to Wintertide and back to summer time could damage these things however he insisted that it would be fine. After a year or so he wanted to go through some of the boxes and pass items on to his adolescents. When he started looking through things he realized that many had mildewed because of the humidity that had built up in the shed when it regularly heated and cooled. This is why his parents had kept the items in a climate controlled space. Precious memories were now lost and items ruined that could not be upgraded, but i felt disappointing for him when he told me about it and suggested that he put in some sort of small dehumidifier at the undoubtedly least to help control the humidity. The barn has electricity anyway so it wouldn’t be hard to do this and it could help to preserve the items that were not lost. Either that, or, he could transfer all of the stuff into his basement where it would be safe too. Of course he doesn’t want to supply up his man cave for that.