"Biff" wrote in message
...

Is it independently tested? If not then
give it a miss. A lot of money for
bubble wrap.

But Tri Iso Super 9 made by a French
company called Actis is not
bubble wrap. If you study it from the
point of view of a theoretical
physisist you may conclude the
manufacturer's claims are likely to be
correct.

They claim the equiv of 200mm of Rockwoll in performance. No independent
test confirms this. A foam maker slags it but will not give full details of
their test. The jury is out. One organisation in Florida concluded that
radiant barriers are good for keeping heat out, in the attic. Other tests
in the US say is performs badly in cold climates. Any benefits are likely
to be draft proofing and a small amount of insulation from the bubble wrap.
Very expensive for so little. Beware!!!!

Making your own with several layers
of cooking foil and craft paper
would, of course, be much cheaper.

And probably as effective as the vastly overpriced Tri Iso.

If this stuff does what they say, It would have it in the loft tomorrow.



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