Cost of natural gas the fact that I can no longer stand the winter cold the way I used to has me doing a major shop renovations. 1000 square foot uninsulated block building with only the ceiling insulated. Heating bills are almost a $300.00 CDN to keep it at 52 degrees F. in the colder months. I'm in the process of completely insulating the walls but a major source of heat lose and draft is around my so called insulated roll up garage door. I know I can refit the door and etc. but we have done that before and it'still not that air tight. I'm wondering about building an external sliding door to block the cold and wind. I have also thought of doing it on the cheap by dropping a large tarp down in front of the door but it would probably freeze and make getting my snow blower out or vehicles in for repairs when needed a real chore.
If anyone one on this newsgroup has had any experience with the same type of problem I would appreciate knowing what they did to lessen the heat lose and drafts without sealing the door completely making un useable in the winter months.
Thanks in advance
Jimbo