My garage is not insulated, heated, or cooled. I have never taken any weatherization measures to tighten up the garage. I store tools, a snow blower, my husband’s motorcycle, and paints and varnish in the garage. It is convenient to use the garage as a workspace for minor construction projects. I have repaired things, cut wood boards, and even measured and cut drywall in the garage. In the summer, I open the overhead doors for ventilation. In the winter, it is too cold to work in the garage. The overhead doors are made of wood and are probably eighty years old. I recently attempted to close one of them and had it completely fall apart. I replaced my ancient wooden doors with a pair of insulated, steel doors. These doors provide a bottom weatherseal made out of rust-proof aluminum. They have weathertight tongue-and-groove section joints to seal out wind, rain, and snow. They are insulated with polyurethane. Now that they are installed, my garage is far more airtight. It has inspired me to take further weatherization steps. By walking around the exterior, I found quite a few small cracks and gaps to the outside, which I sealed with foam insulation. My next investment will be new windows for the garage. While I have no plans to heat the garage, I think that tightening things up will allow me to work in there in the winter. I think it will not only be more comfortable and cleaner in the garage, but there is added security as well. The overhead doors now lock from the inside.