On Thu, 22 Jan 2004 13:34:44 -0000, "IMM" wrote:




You missed it again. It is not a mater of either or. It is cheap to pack
the loft full of insulation and super easy to do so. So do it. The walls
leaking heat is another matter, and of course should be tackled eventually.
To do the walls is not easy and expensive. because the walls leak heat more
than the loft does not mean you ignore the loft, or insulate it to the level
of then walls.

That's exactly what I'm saying. Insulate it to the level of the walls
which is a U value of 0.25 to 0.35 for a place with cavity walls and
insulation. That equates to 100-150mm of glass fibre, not
350mm-600mm.

On an older property, the U value of the walls can easily be 2.0.

There is very little point in reducing the U value for the roof below
0.25 in the context of that.



..andy

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