My concern with the carpet fabric stuff would be that he can't SEE through it therefore he might not GO through it. Especially if you overlap it like you do the plastic stuff to maximize the effect of keeping the temperature inside separate from outside. I know Maro2bear's tort has figured it out but some tortoises are just stupid....
I know. That's what I said...but some torts are just plain dumb. One of my torts has no problem going up the ramp into her heated house every night. I have to go out and pick up the boy and put him in the heated house every evening. Every morning SHE opens it and goes out and wanders around ...he's just dumb.
Every morning SHE opens it and goes out and wanders around ...she's just dumb.