Doug Pearce wrote:

http://eaglecoatings.net/content/sun...adiantheat.htm

Granted this is not the optimum application for this technology.

Indeed. Is it April 1 already? :-)

...In this particular application the SUNSHIELD 2000 is completely buried
in concrete and consequently only 2 of the 4 ceramics will come into play.
The 2 reflective ceramics are ineffective in this type of application
because the coating is facing direct contact, low temperature, front side
conduction. This will reduce the R value equivalency to approximately R10.
Additional R value equivalency can be achieved by adding more thickness.

As I recall, soil has a thermal resistance of about R10, so
it looks like your 14 mils of miracle stuff adds about R0.0,
as anyone knowing some physics might expect from its thickness.
You seem extremely confused, if not a serious crook, exceeding
HVAC criminal standards by a very large margin.

Best regards,

Nick