The good news is Model Rail magazine has a garden rail supplement this month so rush out and pick up a copy now. There is a gent in the mag who has done exactly what you are proposing. He does say that he has replaced the track 3 times over 20 years and I suspect UV light from the sun is the cause of this and not any form of timber treatment. You could always cover the decking with mineral coated roofing felt which does look a little bit like ballast although this does get very hot in the sun.
The even better news is that Hornby Live Steam is absolutely terrific in the garden!
I place flat boards on the grass and plonk a large oval on top to give the Mallard its head in the garden and it is chuffing good. Something to watch, listen to and smell (hot lubricating oil and steam) whilst sunning in the deckchair in sunny hot mediteranean Britain. Maybe I'll get around to something more permanent one day.
Happy modelling
Gary
The even better news is that Hornby Live Steam is absolutely terrific in the garden!
I place flat boards on the grass and plonk a large oval on top to give the Mallard its head in the garden and it is chuffing good. Something to watch, listen to and smell (hot lubricating oil and steam) whilst sunning in the deckchair in sunny hot mediteranean Britain. Maybe I'll get around to something more permanent one day.
Happy modelling
Gary