Ralph might like this one:

"The drying potential of an assembly decreases with the level of insulation and
increases with the rate of air flow.  As such, energy conservation has the
potential to destroy more buildings than architects."

I do indeed like the second sentence, whichever way I read it.  And it's a variation on the obsolescence of mechanical systems making the entire building obsolete.
 
Ralph
-- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: http://listserv.icors.org/archives/bullamanka-pinheads.html