Yesterday I went out to a client's home to view two bathrooms. In one of them, the first thing I noted (other than a sloped floor and water damage) was rust on metal. The coupling for the toilet was rusted, the underside of the curtain rod in the same condition. Even the screws on the robe hooks were rusted. I'm going to condense the conversation:
"Do you know why everything's rusting?"
"Sure," I said. "Combination of poor ventilation and insufficient heat."
She wasn't quite ready to believe me. I pointed to the ceiling fan. "Does the fan work?"
"No," she said reluctantly. "Hasn't worked well for awhile. But we've got a window."
Windows are always the best ventilation but it wasn't the problem. "Let me ask you another question: is it always this cold in here?"
"Well, except in summer," she said.
I looked around. "Room's not warm enough for the steam to evaporate. Water condenses into drips under here--" I pointed to the underside of the curtain rod "--and without sufficient heat, never dries. There's no register vent in here; that's the other half of the problem."
Her eyes lit up. "No, you're wrong! There's a register vent in the floor!"
"Oh." Ok, that surprised me. I'd looked for one and hadn't seen it. "Where?"
"It's hidden under here." She pulled a magazine rack to one side. "See?"
I did. The register vent was closed. It was white metal, also rusted.
"Oh," she said. "Guess we closed that off when the water ran out of the tub and never opened it again."
"And there's the other half of your problem," I said. "Good news is, we're going to fix that. I'm also very glad you like the idea of Nuheat. And while we're at it, let's look at exterior wall insulation."
It's easy to forget when remodeling a bathroom that it isn't simply pretty fixtures and nice lighting. It's a wet room and water (next to sunlight) has always been one of the most damaging factors for materials.
If the above scenario looks familiar to you, it's time to start thinking of a solution. Because if there's enough moisture to rust metal, I can't imagine what the water is doing to your cabinets, walls, and lighting fixtures.

