On Jul 27, 6:49*pm, "Artemus" wrote:
"Existential Angst" wrote in message

...







Awl --

Recently, on one of these How They Do It ditties, they featured but more
Dubai profligacy, this time indoor skiing in the middle of the effing
desert.

The key to the insulation, they explained, was a huge air gap, asserting
that air -- caveat: *trapped non-moving air -- was among the best
insulators.

First, is this true? *Before I insulated my roof, that air would become
blisteringly hot, and it didn't seem to be moving much. *That attic seemed
like a pretty good air gap to me, and it didn't seem to be doing much
insulating.

Second, I seem to remember one strategy where push/pull fans were used with
air gaps in a roof-type situation, to keep air flowing, to reduce the
heating transfer, like what accumulated in my attic -- ie, the exact
opposite of static air.

Now mebbe air behaves differently in conduction vs. *radiant* heat from
roof-type situations that is making the attic so hot, not hot air itself --
if the two can be distinguished wrt air.

iirc, the Dubai ditty used reflection, insulation, AND that big air gap......

But I've read about this insulating property of air before, so I'm wondering
how it might be employed in a house.
It would seem that if air itself was so good, solid insulation wouldn't be
so high a priority

I wonder what mooslims think about Dubai.....
--
EA

No, it's not true as others have already responded.
Those shows are riddled with errors, which, I suspect come from liberal
arts majors writing/editing the scripts which the narrator just reads. *Accuracy
in science or engineering doesn't seem to be high on their list of important
aspects of the show.
Art

Why particularly do you suspect the people you are indicting (without
evidence)? Please defend your thesis with actual data.

HB