@PRR1950 posted:Since Homasote is primarily a paper product, gluing it to your plywood layer will make it next to impossible to recover should your circumstances change. Using just a few screws along the edges of your plywood/Homasote layers will hold everything well enough together for model railroad purposes.
Oh, try not to put those screws where you plan to put track. The buried screw is always the one that needs attending when issues arise.
Chuck
Chuck, Thanks for that info. Duly noted- a few screws (strategically placed) seems the way to go.
Stuart