One common problem with storage sheds made of metal is that they can leak, letting water in and damaging the contents. There are a number of reasons why this may happen. One possibility is that the shed wasn’t installed properly, and the roof isn’t sealed correctly.  Another possible explanation is that the roof is damaged from wear and tear or severe weather. If you suspect that your shed is leaking, it’s important to take action quickly. Otherwise, the damage will only get worse.