The article makes a few valid points. It does an extremely poor job
of differentiating between properly installed insulation and
improperly installed insulation.
Clearly any insulation installed improperly will not perform well. I
could make a case that sheet aluminum foil is a better insulator than
improperly installed urethane foam. It proves nothing.
I don't recall anyone saying that air infiltration wasn't important.
In fact the point I have been trying to make all along is that there
are a wide variety of factors at play. Climate, insulation,
humidity, air infiltration, design of the structure, windows, and
doors are all important. Ignoring even one important factor will
lead to problems.
Grand generalizations like, (6" is enough) or (20 deg temperature
changes are required for condensation) often can lead to incorrect
conclusions.
Air infiltration is important, but not more or less important than
insulation R Factor. They both must be addressed properly for
quality construction. Other details are important beyond these two.
--- In papercreters@yahoogroups.com, "ElfNori" <elf@...> wrote:
>
> Don't agree . . . air infiltration is the thing that will suck your
heat or cool and that's the entire point of the article.
>
> ElfN
>
> ----- Original Message -----
> From: sire@...
>
> The "R Fairy Tale" article is the most ridiculous piece of
hyperbole that I have read in a long time. Eventually it devolves
into a sales pitch for u foam, and by that time the writer had lost
all credibility in my opinon.
>
> Neal
>
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