The "roof rumbling" is not at all uncommon in older "trailer homes." If you spend much time in the country — I mean the COUNTRY — you'll find a fair number of folks put tires on the roof to cut down on the noise. My sister lived in one that was placed "just so" – the prevailing wind would create "waves" in the thin metal roofing that made it sound like someone was running from one end of the place to the other.
Some of the other stuff you listed?
It could certainly be vibrations from the ground, or just someone "screwing" with you – maybe even the "ex" trying to scare you into coming "home"?? Sleep paralysis… The "growling" could be pipes expanding and sliding across the edge of the metal sheet they're passing through…
The thing that strains credulity (to me) is that (1) all of these things happened in one place and (2) they don't happen to anyone involved, anywhere else. OTOH, the mind is a funny thing, and once we begin to believe something is happening, we are pre-programmed to have more "experiences"… I don't doubt you.
I believe there are "things" that we don't understand. I'm undecided on "ghosts" (as in "spirits of formerly-living humans") but don't doubt "spirits" (as in non-human "entities") of some sort exist. I also think much "paranormal" activity could be inter-dimensional in nature, but a vast (overwhelming) majority is simply a mis-interpretation of "normal" phenomena…
Of course (as I've "confessed" here on this site) I've had some experiences I just cannot possibly explain, and don't think anyone else could either. Seeing a plastic planchette move with noone touching it, in a repeating, intelligent pattern…? SOMETHING intelligent was making that happen. I don't blame anyone for thinking I was hallucinating, but *I* know I was not – there were several other people present who saw the same thing. I don't need anyone to believe it.
I see no contradiction in thinking nearly all "para" activity is NOT, but some IS in fact paranormal. The two aren't mutually exclusive…
DD