Frigid weather is hard on your home, especially your roofing. The exterior surface is exposed to the natural elements 24/7, leaving it vulnerable to ice dams in winter. Luckily, they are preventable. Understanding what causes them will ensure you can take the proper steps to make it through snowfall without incident.

What Is an Ice Dam?

This typical winter concern develops due to ice buildup at the edge of a roof's slope. With the indoor heat rising into the attic as it escapes the home and warming the exterior surface, the snow on top melts, and water pools behind the dam. When the freeze returns, the liquid creates a larger ice dam. Its heavy weight pulls down the gutters, and the constant moisture exposure wears down roofing shingles.

During the next thaw cycle, water can seep into your attic. This problem can result in extensive damage to building materials like flooring or roofing. It can even lead to mold growth caused by lingering moisture. The more freeze-thaw cycles that occur, the more harmful the dams become.

How Can You Prevent It?

Poor insulation is the primary cause of an ice dam. During the winter, the material in the attic absorbs indoor heat, preventing the air from warming up the roof and melting snow and ice. This process can't occur if there's inadequate insulation. If you check the space and detect any flimsy or poorly packed areas, have a professional seal them properly.

You can also avoid ice dam formation by addressing existing roofing issues. For proper maintenance, have professionals replace any damaged shingles or pieces of metal flashing. This approach will prevent water from leaking in. Cleaning the gutters will also ensure melting snow can travel and be flushed into your yard before it freezes and causes a dam.

Protect your roof from ice dams by working with Earhart Roofing Company in Anchorage, AK. This family-owned and -operated company has extensive experience working with a wide range of roofs, including asphalt shingles and commercial roofing. You can also count on them to deliver reliable repair and maintenance services that help prevent ice dam formation. Learn about their full scope of work on their website, and call (907) 345-5555 today to schedule an inspection.