Aluminum profiles are generally resistant to moisture and corrosion due to their natural protective oxide layer. However, this resistance can be compromised in certain conditions. For instance, in highly corrosive environments or when exposed to aggressive chemicals, the protective layer may not be sufficient. Additionally, if the aluminum is not properly sealed or coated, it can still be affected by moisture over time. It's important to maintain the integrity of the protective layer and consider the specific environment when using aluminum profiles to ensure their longevity and resistance to corrosion.