Why ? ( humidity question )

[gstring]

I have 4 guitars in a humidified guitar room. 55 - 60 % RH.

Only one has sharp frets and the back is very slightly sunken. ( Ebony fretboard and East Indian Rosewood )

Any ideas as to why ?

Thanks for your thoughts.

daniel

[Pickcity]

No idea if this is why, but isn’t 55-60 a bit high for RH? I think around 40-45 is the sweet spot, if I’m not mistaken. That’s where I keep mine and have never had any problems.

[Justbrandon]

45-55% is the humidity range I try to maintain. What hygrometer are you using? And has it been calibrated recently?

[Osage]

Originally Posted by gstring

I have 4 guitars in a humidified guitar room. 55 - 60 % RH.

Only one has sharp frets and the back is very slightly sunken. ( Ebony fretboard and East Indian Rosewood )

Any ideas as to why ?

Thanks for your thoughts.

daniel

If the guitar is properly humidified, and has been for a while, and you have sharp fret ends, it means the fingerboard wasn't properly dried when the guitar was built and has naturally shrunk as it has cured.

[Slimt]

I have my rooms at 45% . Get your guitars to wet. They will get issues.

[Osage]

Originally Posted by Slimt

I have my rooms at 45% . Get your guitars to wet. They will get issues.

55-60% is completely fine. They won't get sharp fret ends if over humidified.

[abn556]

Chances are your humidity dropped very low at some point and the wood dried out a bit on the fretboard. Even rehydrating doesn’t take it back all the way. When the wood shrinks the metal fret does not, causing the fret ends to protrude. Its an easy fix, but the remedial measure is to case your guitars during really cold snaps. Heaters suck all the humidity out of a house. I have a 335 that has some sharp fret ends from this same thing.

To low humidity is a bigger problem than too high IMO.

[jim1960]

Originally Posted by Osage

55-60% is completely fine. They won't get sharp fret ends if over humidified.

My guitars sound muffled when the humidity reaches that high.

[Bluemonk]

Originally Posted by jim1960

My guitars sound muffled when the humidity reaches that high.

The RH in my music room dips below 60% a handful of days per year, yet my guitars always sound awesome. Guess that's what they're used to.