Autosleeper vt20 insulation

[normal rules]

Does anyone know what insulation these came with from new. I have looked inside the cavities and all I can find is foil lined sheets, which look like a bridge job.

[a1winchester]

I suggest you ring Autosleeper direct. They have been most helpful to me in the past.

[kevtherev]

My sleeper had no insulation on the metal panels.
The hightop has some polyurethane insulation.

Any insulation on the panels is retro.