Get matched with top roof ice and snow removal pros in Calistoga, CA

When temperatures drop far enough, even rock salt can’t melt the ice. The briny solution freezes before it develops, and the salt doesn’t work, which happens around 10 to 15 degrees Fahrenheit. Keep in mind that wind chill and other factors impact ice-melting progress. Some ice melters, like magnesium chloride, work at colder temperatures and work better for deep winter freezes.

How much snow can a roof hold? The answer could help you to avoid roof collapse—a worst-case scenario, of course. For most roofs, you can expect it to withstand four feet of fresh snow, two feet of packed snow, or two to three feet of a mix of old and new snow. However, your roof will only be able to handle one inch of ice. The actual weight capacity of your roof may vary, so check with whoever built it for exact details.

Most roofs can take quite a bit of weight from snow, but their ability to handle heavy snow is not unlimited. Most roofs can handle about 20 pounds per cubic foot of fresh snow. Ice, ice dams, and other factors can contribute to dangerous roof weight. Newer roofs, sloped roofs, and those that have more support can hold more snow than older roofs, flat roofs, and roofs with widely spaced beams. To figure out how much snow your roof can hold, you will need to contact a professional roofing contractor to calculate the maximum snow load for your specific roof.

Snow can be too heavy for a snow blower and cause clogs in the chute. However, having the correct type of blower for the snow conditions can reduce the chances of it being too heavy for it to handle. Another trick for preventing clogs is to make multiple passes while it snows rather than waiting for it to finish snowing.