Use a garden pump-style spayer and spray the ceiling with warm water.
This will soften it up enough to scrape off with a wide drywall knife.
Just be sure to use drop cloths and the like to prevent this sludge
from getting on anything you value like the floor, baseboard, walls,
etc. Wear a cap and eye protection. This job is a bit messy.
The advantage of the popcorn is that is easier than taping and mudding
the ceiling with your arms overhead. You can therefore expect to find
a rather rudimentary taping job underneath the popcorn. You may want
or need to smooth it out by re-mudding the joints and perhaps put a
skim coat on as well, before painting.
A mobile home in cold climates can undergo a lot of frost movement.
that is why they avoid taped wallboard joints which can fail when the
frost heaves. Other wise you could re-apply popcorn which is a lot
less work than taping and painting :-). It is no big deal to apply
popcorn. You use an air compressor and a hopper gun which can all be
rented. It goes up fast and with very little prep.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.