The track is not expanding, the benchwork is shrinking!
This is due to contraction of the benchwork because of the low humidity in the winter. Wood swells up and expands with moisture during the humid months in the summer, and then drys out and contracts in the winter.
If you correct the problem areas now, leave some joints unslodered so that they can open up slightly when the benchwork expands again in the summer.
This bit of advice comes way too late, I know, but remember this for the next go-around... Seal your benchwork. The door upon which my layout is built received two coats of paint to seal it. You can go one step further and prime it first. Make sure you seal all side of everything so nothing curls.
Modeling the Rio Grande Southern First District circa 1938-1946 in HOn3.
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam