The wood used to build your guitar is carefully seasoned and assembled at 40-45% humidity relative to room temperature (22 Celsius/72 Farenheit). A guitar is made to withstand moderate changes in humidity and temperature. However, excessive and prolonged changes in humidity or temperature may lead to damage. How you care for your instrument will greatly affect its appearance, tone, and longevity.
Summer Humidity (Too High)
Most noticeable changes due to excessive moisture and high temperature:
- Decreased string life
- Loss of tonal quality
- String height rises
NOTE: Be very careful about leaving your guitar in the basement during periods of high humidity. Use a dehumidifier or an air conditioner to keep the humidity at 45-55%. Do not expose your guitar to direct sunlight for long periods of time.
Winter Humidity (Too Low)
Most noticeable changes due to excessive dryness and low temperature:
- Lower action, which leads to string buzz
- Frets protruding from the sides of the neck (can’t be felt on bound necks, although you can get cracks at the fret ends)
NOTE: Use a humidifier in the case or in the room to keep the humidity at 45-55%. Allow time for your guitar to warm up before taking it out of the case.
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