As winter presses on with snow and ice accumulating on roofs and other structures across St. Lawrence County, National Grid says people should be careful when clearing off buildings.

Keep all ladders, shovels, roof rakes and other devices well clear of any lines coming from the street to the structure, regardless of material. In extremely wet conditions, even wood can be a conductor of electricity, National Grid said.

Start clearing snow from the opposite end of the roof from the service point where electricity is delivered, National Grid said.

If unsure of how to go about clearing snow and ice, or if a roof is particularly steep, contact a qualified roofing contractor, National Grid said.

As snow is removed from the roof, be aware of what is below that could become buried as snow hits the ground. Be especially mindful where electricity and gas meters are, as they could be damaged by falling snow and ice, National Grid said.

Gas customers should clear snow and ice from gas meters and regulators by gently using a snow brush or broom. Never kick, hit or use sharp objects to remove snow and ice. If a meter or regulator is encased in solid ice, customers should call National Grid’s Contact Center at 1-800-642-4272, National Grid said.

Gas customers also should ensure vents for all natural gas appliances are clear of snow and ice. Covered or clogged vents can lead to the build-up of poisonous carbon monoxide, National Grid said.

Customers who detect an odor of natural gas or suspect carbon monoxide is present in their home, should go outside immediately and breathe deeply. If CO poisoning symptoms, such as headaches or drowsiness, are severe, call 911 immediately, National Grid said.

Customers experiencing gas odors or electricity emergencies should immediately call National Grid’s emergency number at 1-800-867-5222, National Grid said.

Snow removal equipment operators should also be aware of the presence of electricity and natural gas equipment and avoid coming in contact with meters or piling snow around vents and other equipment mounted on the outside of buildings, National Grid said.

More info: https://www1.nationalgridus.com/YourResponsibilities or 1-800-642-4272