Extra Weight Of Precipitation Could Threaten Already Snow-Packed Roofs

Heavy precipitation predicted for our region over the next two days could add 30 to 60 percent more weight to and decks, causing building “failures,” according to William J. Hackett, Connecticut’s Director of Emergency Management.

 An inch to an inch-and-a-half of snow and freezing rain is forecast for Tuesday, according to the National Weather Service. Snow is expected before 9:00 a.m., followed by freezing rain from 9:00 a.m. to noon. A mix of snow and rain is forecast to continue through Tuesday night and into Wednesday.

In response to this forecast of “liquid precipitation,” the Connecticut Department of Emergency Management and Homeland Security (DEMHS) and the Department of Public Safety Division of Fire, Emergency and Building Services has issued a warning about the added weight the precipitation will bring to roofs and decks already covered by heavy snow pack.

 Hackett said if the state receives more than two inches of rain, the failure risk could increase significantly.

 “It is recommended that caution be exercised and roof and deck loads be monitored closely 
by appropriate personnel,” Hackett said in an e-mail.

The National Weather Service has issued the following forecast for tonight and Tuesday:

Tonight: A chance of snow, mainly after 3 a.m. Increasing clouds, with a low around 18. East wind between 5 and 7 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

Tuesday: Snow likely before 9am, then rain and snow between 9am and 3pm, then rain after 3pm. High near 36. East wind between 9 and 15 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.