Disklavier

A fair answer might be anything over 65%. A better answer is how much moisture is actually absorbed in the piano. I know that room air is too humid by how much I am sweating regardless of the temperature. Sometimes cold rooms are too humid. A piano that has sat in a humid room for only a few hours will not have absorbed as much moisture as one that sat in high humidity for months. A musty or moldy odor is always bad.

A great way to see how much moisture in the air varies in your piano room is to use a data logger . This is a perfect tool to show the effect of opening the windows or doors in the evenings because the outside temperature is comfortable, or what happens when you forget to fill the room humidifier with water each day.

So far in my experience, Florida is the worst place I have seen the most humidity damage from. The screws are corroded, mildew and mold embedded in the wood action parts, soundboard cracks and sticking keys. Those pianos age FAST! Pianos that I have seen from further south often have termite damage.

The nice thing about piano climate control rods connected to a humidistat means never having to worry about it!

Carol Beigel

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