[miker98038]

Go over to the HAMB and search "peel and seal". You don't need to be a member. You'll find whole threads on a variety of products, effects, etc. Peel and seal is a roof patching product from a big box hardware store. All worth a look.

They talk about stopping drumming, foil for heat, etc.

I've used a variety of products over the years, mostly commercial, from lead impregnated rubber in motor homes, to rubber insulation for industrial tanks. Whatever you use, a good roller for Formica work really helps lay it down. Having done Formica work in the old days I had the rollers.

After that I use cheap foam, then carpet. Makes an amazing difference in sound and heat.