I know it's sometimes very hard to admit that you are wrong
nobody wants to be wrong, it's just human nature
we all love you Fluff and I'm not personally having a dig at you
in my (limited) experience roofing for domestic housing benefits hugely from under roofing materials insulation
this quote is taken from AS/NZS 4859.1:2002: Materials for the thermal insulation of buildings • AS 3999-1992: Thermal insulation of dwellings—bulk insulation— installation requirements
Quote:
5.40 On the other hand, the Australian Building Codes Board (ABCB), in its Regulation Impact Statement for the recent changes, said, 'studies carried out show a benefit in more roof insulation in all locations.'29'