"Steve Firth" wrote in message
.. .
Bedouin wrote:

What's the best thin insulation available?

Compressed Dr Evil, it's so dense it allows nothing through, not even a
clue.

Back when I laid the underfloor heating in the kitchen, my wife sourced
some extremely thin insulation (about 3-5mm) that claimed to be as good
as 50mm polystyrene. I'll see if I can find the sample and get the
details off it.

In the meantime someone else may recognise the stuff, it has two smooth
sheets of grey plastic (may be polyethylene or polypropylene) with a
foam sandwich.

The one I got has silver foil each side of the plastic. Called Airtec from
Screwfix and was b****y useless.


--
"They that can give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."

-- Benjamin Franklin, 1759