How about this test? It's not scientific, and has tons of flaws.

Lay on the ground on a sunny day.....how hot do you feel?

Lay on the ground on a sunny day with the solar cover over you....how hot do you feel? (heck, put a towel over you and you're still hotter).

My lawn burned last year from leaving the solar cover on the grass for 1.5 hours while I cleaned it off due to bugs, bird bombs, dirt, etc. My lawn doesn't burn from just the sun.

IMHO, the solar cover traps the heat and reduces heat loss.

BTW, yard totally recovered.

CaryB
Go Sens Go!