"Andrew" wrote in message
om...
(sPoNiX) wrote in message
...
On Tue, 08 Jun 2004 13:55:42 +0100, The Natural Philosopher
wrote:

First off you should insulate the upstairs ceilings better. This
reduces
heat uptake from the roof space.

Hmmmm:http://jambalaya.bayswaterfarm.com/archives/000026.html

"a hefty dose of loft insulation will keep warmth in during summer as
well as winter"

That's the problem with sweeping generalisations, without explanation
or consideration of individual factors.

See for yourself by measuring the temperature in your loft. If it's
hotter than the rooms below then the heat can only go one way - down.
Extra insulation will stop that. If the loft is cooler then more
insulation will keep the heat in the rooms. I suspect your loft will
be warmer and more insulation will be a good thing.

In the USA in some states it is common to have a large fan on the gable end
of the loft. This extracts all the hot air inside cooling the loft. They
also use it to extract heavy moisture laden air to prevent condensation.
Tests have proved that heavy insulation and a vapour barrier is best as the
running cost, not mention the installation cost, of the fan is not worth it.