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Reply to "With Gargraves flexible track how big a gap do you allow at a joint?"

In an air-conditioned room where the temperature stays within four or five degrees year round a gap is not so important but a friend has a layout in an attic and does not run the air-conditioner unless he is running trains so the temp in the summer is often near a hundred degrees and can be as low as fifty on a cold winter night. He realized early on when he only had one loop around the room that he needed some gaps or the rail heads got wavy when it was hot. He settled on about 1/16" every three sections, nine feet,  and it seems to have cured the problem.          j

Last edited by JohnActon
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