As humidity increases, moisture content of wood increases rapidly, causing it to expand and swell. A gradual increase in humidity won’t generally do permanent damage to your instrument. When very high humidity is combined with high temperature, glue joints could possibly become weakened and may even open slightly. If your guitar is exposed to high temperature or humidity for any length of time, the glue under the bridge could weaken causing the bridge to separate.
Rapid changes in relative humidity are what you want to guard against. If, for instance, you place your guitar near a source of dry heat, the humidity around it will drop much faster than it would naturally, although a sudden dry spell can have the same effect. If the moisture content of wood is rapidly decreased, cracks and severed joints may appear. Don’t place your instrument near to a source of heat or hang it on an outside wall which contains raised humidity.
Should the guitar be exposed to freezing temperatures, let it warm to room temperature while still in its case before use. This gradual rise in temperature decreases the possibility of wood and finish cracks.
Caution should be taken if you choose to use a humidifier to combat low humidity. Moisture in direct contact with the guitar could cause damage, as can the rubber or vinyl parts of a humidifier.
We recommend storing your guitar in its case when not in use. Humidity is easier to control in a smaller space. Don’t bother loosening the strings when putting your guitar away unless it won’t be used again for several months. Constantly tightening and loosening strings quickly ruins their sound.
The Ramirez hard case supports the neck and body of your guitar as evenly as possible. It’s important that you don’t let anything lie under the head (the tuning machine end), as this could damage the neck and body.
Repairs to your instrument should be performed by an authorised Luthier.