Has anyone else had trouble with floor covering in TT cracking in cold weather. Know how to help prevent this short of maintaining warmer temps in TT

probably need to lay a new floor because the quality of rv flooring gets brittle with age. I would look at a good grade of new vinyl flooring.

Remember is a moving, flexing, home on wheels. Eventually it will get brittle and start to crack from the constant flexing of the floor. 

It cracked while it was parked. Hadn't been moved for a month. 

It was below zero for several days!