On Tue, 02 Sep 2003 21:16:33 +0100, The Natural Philosopher
wrote:

Rich wrote:

I am debating weather to use the Kingspan 8'x 4' sheets or
the Rockwoll roll 100 x 400 to insulate a suspended timber ground
floor.

I have looked on the repsective websites for these manufacture's and
cannot find the answer.
The Kingspan references U-Values but these mean nothing to me!

What would give me the best results bearing in mind the cost
difference per m^2.
Roughly half the price for Rockwool!



If you have the depth ise the wool, teh kingspan is superior in terms of
insulation per unit depth, so is used where depth is limited.


Celotex and Kingspan also have vapour barriers on both sides. It is
also much easier and quicker to fit these boards. You simply cut
them to width and then put in nails or other suitable supports on each
side of each joist. Lay the foam sheet in place and that's it - it's
self supporting.

For a soft blanket material, time and effort is needed to put in a
suitable arrangement to hold it in place.


..andy

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