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A roof's ability to handle snow depends on its strength and the snow's weight, as wet snow is much heavier than dry, fluffy snow. While designs in snowy regions often allow for 35 to 50 pounds per square foot, a general guideline is that a typical roof can withstand about four feet of fresh snow, two feet of packed snow, or just one inch of ice. Factors like the roof's age, slope, and support structure also affect its capacity; newer, sloped roofs generally hold more weight than older, flat ones. Ice and ice dams add significant, dangerous weight. Because capacity varies, it is best to contact a professional roofing contractor or the original builder to determine the maximum snow load for your specific home.

A roof overlay will last an average of 15 years, compared to the 20 to 30 years or more that a full roof replacement for a shingle roof will last. An overlay’s lifespan may be shortened even further if there’s underlying damage to the existing roof or structural problems with the roof supports.

While you don’t have to let roofers inside your home, it is proper etiquette to offer the use of your restrooms. And if it’s a hot day, it’s polite to invite the roofers into your house to cool off and have a chilled drink.

The cost to install roof heating cables typically ranges from $500 to $2,000, with an average of around $1,000. On a per-foot basis, you can expect to pay between $8 and $15 per linear foot. Key factors that influence the final price include the size and complexity of your roof, roof pitch, the type and length of the cable, the price of the system itself, labor fees, and whether any additional electrical work is required. Generally, smaller roofs will cost less than larger ones. The total cost usually includes both materials and professional installation.