These guidelines remain effective until the Department of Education advises otherwise. Maintenance staff is to conduct a visual inspection of each roof to monitor snow and ice accumulation. Do not allow accumulation of snow and ice to be any greater that the depth indicated on the attached maps. Permissible snow accumulation on roofs should not exceed these depths. Remove snow accumulations, where high and low roofs meet and around roof top mechanical units where the snow accumulation exceeds the depths indicated.
Inspect roof drains and ensure drains are in proper working order.
When removing snow from one section of roof, avoid traveling over and compacting snow on adjacent roof sections. Maintenance personnel shall monitor snow and ice accumulation more closely during periods when wet snow or snow followed by rain is forecasted. For these situations, the maximum depths indicated on the attached maps shall be decreased by 25 percent. When the maximum depth is reached from the contribution of many snowstorms, decrease the maximum depths indicated on the attached maps by 25 percent. If snow densities in excess of this value are measured, notify the Department immediately.