Mh remodel part 1--ceiling/roof ? 1st photos

[DCDiva]

We got started--gutted the 2 bedrooms--we decided to just gut the entire mh--easier than working w old. We figure out why the ceiling was sagging--they used 2 x2, ran opp of roof rafter--good---ran to side walls--did not tie into side walls-- by supporting ends by putting a 1 or 2 x 2 the same way rafters run to support them--so the ceiling sagged--if yours is sagging this might be the problem--they did one part good,2nd wrong--the weight brought down the ceiling--not sure if I photos of? will post if so

My ? our roof is 2x2, then another 2x2 about 6 inches below and tired together by a square of paneling--have photo-is this common? I think this is another reason for sag---we are going to run 2x4 on sides and then run 2 x6 across ceiling to help support ceiling and tie in w 2x4 across--not worried about roof--we are adding a new roof--that will not touch this roof---we are putting up dry wall on walls and ceiling so want good support, photos below.
You might have to right click view photo to see correctly--do not know what setting to get normal photos to appear??

1--ceiling

[Harry]

2x2, then another 2x2 about 6 inches below and tired together by a square of paneling