[ecomodded]

I am in a 70s house plywood construction , under the outside siding and under the asphalt shingled roof and I still hear the rain , well not when its sprinkling out but any thing above that and I hear it , with a downpour it can be quite noisy. I doubt there are many if not any houses that damper the rains noise. Except perhaps a commercial Tar and Gravel flat roof is right next to silent , they have 6" of foam board as the first later.
Back in the day I was a roofer and hated the flat roofs , hard to tear off and stinky to put on they were.