Hello Isaac, I live on a peninsula. Cape Cod in Massachusets, USA. Geographically, we are on the same A>> "This grand piano is in a very moisty place , something like 65% >> permanent moist, and the pinning is very tight. >> >> Consider the piano will stay in this moisty place - is it correct to re >> pin, or is there a better solution ? (the soundboard seems ok, too much >> crown but it sounds 15 " of nice ringing on note #65) >> >> I will appreciate an idea, something to help me for the regulation at >> first. In my place there is 50% moist env. >> If I dry the flanges, the pinning will free, but I will be papering a >> lot, and it surely will not stay squared and free when it will be back. >> >> Is it a job for Damp-ChaserMan ?" >> >> My question is: Whats about the ideal % of moisture? Where I live >> (Blegium), for the moment I have about 53% of rel. moisture. It can go to >> about 60-60% but also get down to 40-45% in winter. Untill now I've never >> had that much problems with tunings of piano's. >> >> My opininon is: it's much better to place the piano in a place with a high % >> of moisture than in a very dry place, because the wood will be no satisfied >> and causes cracks in the soundboard. Is this a good way of thinking or am I >> toally wrong? Any reactions would be greatfull accepted. >> >> Peter > >Peter, I agree with you. > >Tech sepcifications I received from BOSENDORFER factory indicates that >the moist must be something AROUND 50% and the moist in the wood is then >9% for 20° c dry temperature AT THIS MOMENT, It changes with the rel >moist and temperature, growing dependently .- STEYNWAY moist is 42% rel >at the factory (where the sounbords are made) - >By the way, there is a 8° for 25 cm slant on the bridge, toward the pins >(is it TOWARD ?) as I asked. > >I have a diagram showing the relation between rel moist of air, >temperature and wood moisture. > At 20° c 50% rel moist, wood moisture is 9,5 % > At 20° c 40% rel moist, wood moisture is 7.7 % >At 20 °c 60 % rel moist, wood moisture is 11,5 % > >wood moisture wiil be less with lower temperature, and grow with the >temperature, (some 0.5% plus with 10 degrees more) > >Hope it is readeable > >Our superior syndycate of dealers, in France, (SYCOMUS) produce a few >years ago a warranty for the piano (a document) indicating that the >piano MUST be in a place with 60° - 65 % moist (and if not the warranty >is off !) They are totally wron from my opinion. > >The big thing here, is to have a minimum of changes and they must be >slow. >You seems to have a "normal" moist in the air like we have in Paris. >I agree it is better to be in a moit place than a dry. >I don't have problemes with tuning pins, but pinning (flanges) is too >tightrel moist changes with temperature of air too. >Steel began to corrode at 67% > >If I made mistakes please let me know > >Cordialement >Isaac > > Jon Page Harwich Port, Cape Cod, Mass. (jpage@capecod.net) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~
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