soundboard drying speed

[gordon stelter]

I know someone who dries the piano in a  room at 10%
Rh for two weeks. He says he gets good results, but
that scares me a  little. 
 How low Rh is "Too low" ? 
     Thump

--- Bob Hull <hullfam5 at yahoo.com> wrote:

> When you are preparing an old soundboard for
> repairing
> cracks and refinishing, perhaps for coating with
> epoxy
> to reinforce, is a slower, gentler drying speed
> better
> for the board?  Can making a board to desorb too
> quickly cause fiber damage or other damage?  
> 
> When drying out an older board my monitoring rule
> for
> the heat is that I don't let a board get too warm to
> the touch.  I used to let it gently dry for a couple
> of weeks and see the cracks open up and stop
> expanding.  However, I would like to speed up this
> process if possible.
> 
> I have used various methods: heater bars, lamps and
> a
> dehumidfier.
> 
> Comments please.
> 
> Thank you.
> 
> Bob Hull
> 
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