Buster, Calgary AB sounds even more extreme than where I live in New Brunswick. Marjo has it better.
I also brought most of my larger fig trees (about 15 of them, between 4 and 6 feet tall with one or many main stems) into the house when I was worried that the garage would get too cold, but then the weather warmed up, and it never did get below minus 3C out there (about 26F) even this late. It seems that when the Central US and Europe have a very hard winter, we, in the far North East get it mild.
My trees are in a very large windowed room and get full sun, when it shines. they are now just breaking out in breba figs, so I am excited about this. I have overwintered a few figs like this in the house before and had good success with breba figs. I have other trees buried in a mulch pile and in the garden, and many others - smaller ones - in a cold room. I am also eating some ripening figs in the same window. They are slow. and a little smaller than they should be at about 50 grams (should be over 100 grams) and do not develop the color they should have, but when ripe, they are delicious.