[CAUT] Steam explosion

[Don Mannino]

Talk about steam voicing!
 
If the action is still free, then that would indicate that the piano was
not very affected by the moisture, plus the normally low pitch seems to
indicate that the board was not hurt, and that it had dried back down
again.  If you don't see any issues in a careful inspection of the
board, ribs and perimeter, I wouldn't worry about damage.  If you see
signs of ridges and crushed areas near the joints in the board,
separated ribs near the glue joints, or if you can get the board to push
away from the liner at any point around the edges, then you should point
this out and plan on issues later.
 
A more common cause for similar damage is when there is a fire in a part
of a house, and the house is doused thoroughly and the piano stands in a
very wet environment that had been hot and smoky.  I've seen a fair
number of pianos come through this nasty experience fine except for the
smoke smell.
 
Don Mannino
 

  _____  

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
denisikeler at aol.com
Sent: Thursday, February 11, 2010 5:39 AM
To: caut at ptg.org
Subject: [CAUT] Steam explosion


Hello list,
 
Got a call from a music teacher from an elementary school.  Sometime
between Christmas and New Years a radiator blew in his classroom.  The
whole classroom was steamed hard and wet.  Everything hanging on the
walls were wet, ceiling tiles were all warped.  The piano involved was a
mid 90's P22.  It was at the opposite side of the room.  The finish
looks like it was scalded with boiling water.  Other than that, it seems
OK.  All the unisons were solid, just a little flat which is normal for
this time of year.  There are no pressure ridges on the soundboard.
 
I was wondering if anybody had any thoughts on any long term damage that
might show up later.  My thinking is, that the steam heat explosion
thing was short.  Only long enough to release all the pressure from the
boiler system.  Because no one was around between the holidays, the room
stood wet for several days.
 
The piano sounds perfectly normal.  
 
Have anybody on the list had a simalar situation?
 
 Denis


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