Vinyl Top in Cold Garage?

Crank that pellet stove up and get it at least 70 in the garage. Let it run all day (or even all night if need be). You want The roof surface to be at a comfortable temp before spraying the adhesive. I have painted cars in a detached garage in the middle of winter. Prior to painting the heat was left on all night - the sheet metal was not cold and the paint layer down great. Same principle for doing a vinyl top.