They do concrete work in Canada in freezing temps all the time. It just can't be "too cold" or even the insulation / heating isn't enough. But in general 38F is

They do concrete work in Canada in freezing temps all the time. It just can't be "too cold" or even the insulation / heating isn't enough. But in general 38F is "laughable" so to speak ;) Seen them do it in sub 0 (C of course, it's Canada) all the time.