OP
"PEEL-N-SEAL works with full efficiency in a range from an amazing frigid 65° below zero to 180° F."out of all the brands mentioned so far the best are as follows (in this order)
Dynamat extreme 1.7 mm thick 300 heat tolerance
Brown Bread 1.51 mm thick 293 heat tolerance
Edead 44 mils thick 200 heat tolerance
Fatmat 45 mils thick 180 heat tolerace
Peel and seal 40 mils thick 150 heat tolerance
ANT
on a roof"PEEL-N-SEAL works with full efficiency in a range from an amazing frigid 65° below zero to 180° F."
Quoted straight from their website.