Just how cool can it get outside before I should wait until next
summer.
Contractor says can do roof in the cold. I would think the shingles
would
crack/shatter at some point. Comments please. Thanks

We would roof 'til it became too cold for us, not the materials. Tom

this_is_so_over_done wrote:
Just how cool can it get outside before I should wait until next
summer.
Contractor says can do roof in the cold. I would think the shingles
would
crack/shatter at some point. Comments please. Thanks

I had my roof done on February with -15 c. We used the "gum" specific
to winter application. No problems at all. In March (left over shingles
stored outside under a tarp) were used to roof a new shed - no problems.