[CAUT] rehearsal room climate swings

[Porritt, David]

Wow! John!  Those are some pretty ugly graphs!  The good part is it
makes me thankful for our system although until now I have been prone to
complain about it.  I just bought a data-logger a few months ago and it
certainly helps give some credibility when I do complain.  It looks like
it might have rained in there last July.  I've never tried the string
covers so I can't shed any light on that except to say I'm sure they
wouldn't hurt.

dave

David M. Porritt
dporritt at smu.edu

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
John Minor
Sent: Tuesday, May 16, 2006 2:23 PM
To: caut
Subject: [CAUT] rehearsal room climate swings

I've been fighting wide swings in temp/humidity in university
buildings for 13 years now and the tuning stability seems to
get worse each year. One of our buildings recently underwent
HVAC updates and the air exchange is now much more rapid that it
ever was. I suspect this constant high volume flow of outside
air around the pianos has a great deal of destabilizing effect.

Has anyone tried using Edwards String Covers to shield the
pianos from all that airflow? 

Any ideas?

John Minor
University of Illinois

The 2 images are from a DICKSON DATA LOGGER tucked under the
soundboard of a Steinway B in large rehearsal room. It was set
to log hourly readings.