On Fri, 29 Oct 2004 00:43:33 +0100, "IMM" wrote:


"DeanoH" wrote in message


The lower the U value the better the insulation value.
The higher the R value the better.

Finding the R value of the materials in a wall: brick, plasterboard, etc and
the insulation, and then adding them gives the total R value.


While this is true, for this exercise, the resultant R value (and U
value) are going to be so dominated by the Celotex rather than the
wood and plasterboard that they are not worth bothering with..


..andy

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