Some comments about tire covers:
I had a number of wheel sets with various types of construction covering Clement Setas and Clement silk track tires, #1's and #3's, for an extended period, Years! Almost a decade actually. The results.
The "old old school " Clement tire covers, made from essentially Criterium Seta extra Casings preserved the tires great, tubes died, tire covers died. Tires can be retubed, if one was willing to ride retubed track tires, which I am not.
The Clement "blue rubber" tire warmers worked reasonably well, not as good as the silk casings, lots of surface cracks in the cover casings. Tubes again toast, tire casings dry but probably still worth retubing.
The Team Raleigh & Turin Bicycle Co- Op Chicago tire covers made from vinyl coated fabric, tire covers still good, tires inside toast. Probably vinyl plasticizer migration killed them.
I would not use vinyl coated fabric on tire covers except for short term protection with tires that have exposed silk or cotton casings.