Augusto,
When I finished the interior of my shop, I installed the insulation dams in the eves before I put the sheetrock on the ceiling and the plywood on the walls.
IIRC it cost me just over $300 to have R-38 fiberglass blown into the 740 square foot ceiling. I checked with the local HD. I couldn't do it that cheaply.
My shop is heated with NG Lennox 75,000 btu gas furnace. I have R-19 in the walls of the shop and 1 10' insulated garage door, 3 4'x3' thermopane windows and 1 36" insulated steel walk-thru door. It isn't expensive to heat my shop. I typically set it for 58ºF. When I want to work, I go out set the thermostat for 64º and go back in for another cup of coffee. When I come out the shop is warm.
Last edited by Ken Fitzgerald; 12-17-2009 at 10:45 PM.
Ken
So much to learn, so little time.....