This reminder comes from the Ministry of Labour, Immigration, Training, Skills and Development. It is recommended that businesses and individuals assess their structures where there is more than normal accumulation of snow, not unlike the last few days.
Accumulation can be on roofs as well as exposed elevated surfaces such as parking garage levels. Any addition of rain to accumulated snow will significantly increase the weight of the snow. Inspect your building and take the necessary measures to avoid overload due to snow and rain.