On Thu, 09 Sep 2010 01:26:00 +0200, Sjouke Burry
wrote:

...... wrote:
Why Insulation is a Good Investment

Investing in products to make homes more energy efficient pays
significant dividends over a lifetime €” with none of the wild
fluctuations of Wall Street. Insulation contributes to:

- Greater comfort
- Even temperature distribution
- Improved acoustics
- Better moisture control, which can reduce floor squeaks, drywall
cracks,
cut
Hmm, in my country there are lots of problems with insulated
houses, mostly in the new ones.
People get what they call the office syndrome, coming from
fungi and bacteria loving those nice ventilation systems that
cant be cleaned inside,and all the dead spaces without ventilation.
Some new houses are without windows you can open, because that
interferes with those modern ventilation systems.
Also problems with too low or too high moisture, stuffy
atmosphere, and other ailments which have no simple cause.

So your statements seem to me a bit optimistic.
In my (old, 1935) house the double glazing was the best thing
in comfort improvement(and it saves me money .
But I have not started to hunt for small leaks, they make sure
that the atmosphere stays healthy.
house
Insulation in itself does NOT reduce the air change rate of a house
significantly - unless it is sprayed foam or similar. Making a house
TOO tight can definitely cause problems - but a reasonably well
insulated house IS more comfortable, due to better temperature
distribution and can definitely help reduce damp related issues by
keeping moisture from condensing on abnormally cold surfaces.

It also reduces both heating and cooling costs and makes the house
quieter.

The most important insulation is what you put in the attic/roof area.
Even if you don't insulate the walls, insulate the attic.