Hot answers tagged underlayment
You have the answer in your question. I've used felt cushions in appartments to reduce traffic noise and it makes a huge difference. But beware, if you have a very uneven subfloor you'll get a lot of squeaky noises and no rosin paper or cushions are going to fix the problem.
You probably missed "the best option for reducing noise to below" if you put down new subfloors and didn't put insulation under them (assuming you actually removed the old subfloor and had open joists.) Your next-best option would be to blow in insulation from below. If you are already committed to nail-down flooring, I don't think the underlayment will ...
Done. Turns out that there's no glue under the underlayment, instead it's just luaun plywood sheets that are stapled extremely well to the subfloor. Once I was able to grab an edge, it was relatively easy to pry the entire thing off, one sheet at a time.
I don't know what Green Glue is other than it appears to form a gasket of sorts. My thoughts would be to try insulation along with layering some dis-similar materials to avoid conductive transfer. I'd suggest a sandwich of XPS foam, topped with cork underlayment, then your finish floor (which, ideally, could be dry-core subfloor panels topped with ...
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