The recent bout of cold weather has prompted this post after I recently completed an installation of an Alpina 4×3 cabin. Arriving on site, the temperature had again plummeted to well below freezing. There was the timber pack, nicely wrapped with tarpaulin to keep warm and dry, however the packs of shingles were left in their shrink wrapped polythene open to the elements.
If exposed to freezing conditions, your shingles will become just like a Jacobs Cream Cracker, brittle and very easily damaged.
Keep warm !