[CUZICAN]

Fatmat is garbage. It's roofing ice & water shield, not butyl based sound deadener.

It will get hot, smell like tar, and run.

If you don't want to use dynamat, use Raammat, or damplifier pro.

Say what you want about fatmat, but it never smelled up my interior, after the first day the smell was gone, and it made a very noticeable improvement in road noise. When you closed the doors it made the truck sound and feel solid, not like the empty tin can it sounded like before I installed it.