Marcus wrote:Hi all. Just a quick question about ballesting.
I realise that about 70% of my layout has been ballasted, with first board track sitting on 4mm underlay. When I came to ballasting board 2, I secured directly without underlay because when I test ran my loco on first board with underlay it ran quieter, but once ballast had been applied and glued the noise level went back up again. This is why I haven't bothered with underlay on second or third board. Basically I'm just asking if anyone else found that the quietening properties of underlay being deminished once ballast applied, or is there a knack to ballasting I've overlooked?
Nope! This has been discussed a number of tims elsewhere with results exactly as you've experienced. Underlay reduces noise but if you're ballasting then underlay makes no difference whatsoever to noise levels.