 and it's actually better than using standard felt paper under a roof. The reason that your roof is leaking now is probably not because of the TAM shield. It's probably because of something that went wrong with the repair, but I don't think it would have been the underlayment because that's actually pretty good stuff. How is it leaking, Judy? Tell me about the leak. Well, we really don't know. It comes through in our bathroom, and we get up in the attic, and we can see drips.