Over the course of my many busses I've tried the Home Depot roof product and found it peels off on hot days over time. It's not worth doing it. 

Get "fatmat" off amazon. It's cheap and sticks way better. 

-craig 

> On May 24, 2015, at 12:57 AM, John Rodgers <jrodgers113@GMAIL.COM> wrote:
> 
> The time has come when I MUST do something about the noise level in my '88
> GL. I seem to recall some discussion about a product at Home Depot or Lowes
> that works. I'm sure theres others. Anyone know it's name? Any other
> suggestions as to what to use.
> 
> Thanks..
> 
> John