Originally Posted by RKins
Query Dav L here - he replaced his ceiling in his '02 Mountain Aire. I'm sure he knows what you're looking for.
I reused mine. So didn't need to purchase any. I did give the old T strips a coat of paint to freshen them up.
Surprised heat help get that strip out. They are a bugger to remove. I think I used two "wonder bars" one on each side and pushed against the ceiling to get the T strip started. I would put a wide paint scraper under the wonder bar if you are saving the ceiling. I started from one side. Once you get it started, then it comes out with less effort (still effort). Looking at your pic now...I see you already have a ceiling tile out so getting the T strip out is easier with heat (you can apply the heat to the rib).
Newmar was pretty reasonable for the price of a replacement ceiling tile. When you factor in the material cost and labor to make one (I made mine).
At one point I have seen a source for the strips...but the Internet link doesn't come to mind. But first thing I would do is email Newmar parts department. They are awesome for this type of part.
That HomeDepot link is not the same type of T strip. Note the side "wings"..they are intended for thin ceiling tiles, not the thick (about 1 1/2") ceiling assembly on a Newmar. Not sure if the center rib is correct dimension either to grab onto the roof spar.