Reply To: Tightening up of trackwork and expanding expansion gaps.

[Douglas FirthParticipant]

Neil,

You are not alone. In Perth we can have a wide variation in temperatures and many a layout has had expansion and contraction problems. OK your study should be a buffer to this but check the temp changes as accurately as you can to make sure the temp doesn’t spike at some point during the day or time of the year. I grew up in Sydney and also did my training as a book and paper conservator there . We had to continually check the temp and humidity, there are large changes in Sydney. Sorry this is so long,

Douglas Firth.