Sound deadner

Did you notice any off-gassing from that stuff? I have heard that some home repair type materials give off an asphalt odor. Otherwise, like that solution.

No, it's a bit smelly when you first peel off the backing but once it's stuck on there's no smell at all, even when it heats up. I definitely wouldn't use it if it did, asphalt and petroleum smells in general give me a headache nowadays.