Tractor Matt wrote:Its the Peco track that has warped not the base board
Hence, why I asked what method you have used to apply the track to the baseboard
If the baseboard has not warped then there is another issue, as N gauge track does not normally warp
It will expand and contract, the fishplates and IRJs normally take up this movement
Finally, what about the temperature in the loft; variable or consistent?
One thing I learned during my first construction was to get consistent temperature, and I now have a thermometer in the room to ensure the room is kept to between 18'C and 22'C