Prepping the garage Options

[turbohcar]

I had R13 in the walls of my garage, covered with 4x8sheets of the cheapest pressboard at Lowes. I used pressboard simply for it's light weight and because it's pretty sturdy. The Garage door is insulated as well with R10 and rubber seal strips covering the gaps. I didn't get around to putting any insulation in on the ceiling as it was 20ft in the air. Sorry, I have no desire to spend my time standing on a ladder holding a giant sheet of pressboard while I'm 20ft off the ground. There are other ways that I had thought of to get the job done other than using pressboard on the ceiling. I had thought of using some of the really thick clear plastic lining material. Staple that to the underside of the rafters and use more R13 on top. This last winter even without insulation on the ceiling, it was quite comfortable even with just a little salamander heater.

The best setup I've ever encountered was at the Dodge dealership in Pontiac. Water heated floors, insulated doors and walls. But, then you'd have to dig up all the concrete in your garage, lay the garden hose (or whatever hose you prefer) and hook a pump and heater to it, then lay new concrete.