On Wed, 05 Oct 2005 16:17:42 GMT, "Brian Reay"
wrote:



"Grunff" wrote in message
.. .
Karen wrote:

I was told that before I lay the new insulation I should put down a layer
of aluminium foil before laying the insulation between the joists, as
this will reflect heat back down into the rooms below. Is this correct
or his the person giving me this advice talking a load of ********.

While it's technically correct, the amount of energy it will reflect will
be negligible, so for all intents and purposes they are talking ********.

But, the foil will act as a vapour barrier, all be it an imperfect one,
which is a worthwhile reason to do it.

Where is the 'vapour' coming from Brian? I would have *thought* you
wouldn't want to trap vapour in the room but let it permeate out
through the walls / ceilings etc and if there was a vapour trap above
the ceiling it would keep the plasterboard damp?

All the best ..

T i m