Vinyl Top in Cold Garage?

It's always better to put soft items on when it's warm, and I typically wait till a nice sunny day comes along, then lay the item to be installed out in the sun for a while, then do the job in the shade! You can rush it if you want, and put it on in a cold garage, just don't come back crying how you have to do it over because it didn't come out right!!! Better to wait and do it right the first time, but that's just me!!!