And leaned against a wall probably, if they are bowed.
I often wonder though, if these insulation panels are supposed to insulate,
how come they can show this sort of effect if cold on one side, rather makes
you wonder about their long term integrity.
I cannot see the picture, but have heard of this before and it jogged my
mind.

Brian

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"Mathew Newton" wrote in message
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On Wednesday, 13 March 2019 21:15:10 UTC, The Natural Philosopher wrote:

been left out in the cold thats all.

delta expansion coefficients

Okay, that's reassuring.

I thought the first response was going to be an straight up "Shocking. I
wouldn't even accept them as seconds!" or something along those lines!