I have been repairing layouts for friends that have used foam roadbed. My advice is not to use it. It has no way of anchoring your ties and rail other than glue and that will not maintain gauge at all. I recommend cork or Homosote roadbed. Both are easy to use and provide a great noise barrier and will resond to temperature changes well.
I go four feet unless on curve for expansion joints. Very few problems as I use railjoiners at those locations that are not soldered. I solder in other locations where a joint is required.
If you are using Woodland Scenics foam core components in your track work, Be aware that the material can settle and move over time. (If you use it, try using cork glue to the top with the woodland Scenics glue. This is a good way to go if you are using their foam products.
I use the 6'6" Mt. Albert ties and they look spot-on when ballasted. As I adapt Atlas switches to my trackwork, I have had no problems with them mnounted on Mt. Albert or Kappler switch ties. I use code 100 and code 83 rail.
I go four feet unless on curve for expansion joints. Very few problems as I use railjoiners at those locations that are not soldered. I solder in other locations where a joint is required.
If you are using Woodland Scenics foam core components in your track work, Be aware that the material can settle and move over time. (If you use it, try using cork glue to the top with the woodland Scenics glue. This is a good way to go if you are using their foam products.
I use the 6'6" Mt. Albert ties and they look spot-on when ballasted. As I adapt Atlas switches to my trackwork, I have had no problems with them mnounted on Mt. Albert or Kappler switch ties. I use code 100 and code 83 rail.