Hillsideresident I would have thought this would be down to head office rather than on site management to make a decision on this kind of thing, but I may be wrong so if anyone has more info please post.
I totally agree that staff should be able to wear extra clothing like what rshdunlop mentioned in a previous post and they may well be allowed, or they may not be allowed I don't know because I don't work there. I do hope that all staff keep warm and well.