In article , ARWadworth
writes
From the post with the title "Between-floor insulation" there is a link to

http://www.screwfix.com/search.do;js...JYCSTHZPCFFA?_
dyncharset=UTF-8&fh_search=foil+tec

It says in the review that it encourages heat to rise. Can someone tell me
what I am missing out on here as I thought heat did rise.

Your intuition is correct, it is indeed snake foil . . . .
--
fred
Plusnet - I hope you like vanilla