Originally Posted by Timay
there is no adhesive under the lino there in the middle!!?? I wonder if the edges are glued, but I won't be able to tell since the edges are underneath the cabinets and the carpet.
The lino doesn't get glued down, it's floating. They just staple it around the entire perimeter of a unit and build everything on top of that.
I believe what happens is that the sheet flooring shrinks when it gets cold. Then when it shrinks, any areas of non-uniform tension and where there are penetrations, such as around floor ducts, it can pull itself apart. I also believe that as this stuff gets older, it tends to get more brittle and thus will crack easier.
You could talk to a flooring installer and see if they can glue the seams together for you. You could see if you have some pieces inside a cabinet, in the underbed storage, etc. that you can cut out to use for a patch. They can glue lino together and you can barely see the joint. Might buy some time before you decide to redo the entire floor.
Now might be a good time to think about upgrading to a laminate interlocking plank type flooring product. We installed an ABS type in our last TT. It was just a little over 1/8" thick and was fairly easy to install, just time-consuming. Thicker stuff (around 1/2") would cause problems. Removing the old lino would reduce the build-up thickness. Good time of the year to look at doing this before you're into the camping season full-swing.