I found it interesting that anywhere I laid epdm rubber out on the grass, it turned brown the next day, after sitting there on a short time (10-15 minutes?) Not long enough to get very hot IMO
When I tore off old asphalt shingles I'd put a tarp down and in the Summer the grass and sometimes shrubs got scorched. that EPDM I scored last month was on the grass for a few days and luckily it didn't scorch although much sunlight didn't hit it.
