Ice Dam Prevention

What Are Ice Dams?

Before we dive into prevention methods, it's important to understand what ice dams are and why they're a problem. Ice dams form when heat from your home escapes into your attic and melts snow on your roof. This melted snow then runs down the roof until it reaches the colder eaves, where it refreezes into a dam. As more snow melts and runs down the roof, it gets trapped behind the dam and can seep under shingles or other roofing materials. This can lead to water damage inside your home.

Inspect Your Roof

The first step in preventing ice dams is to inspect your roof for any potential issues that could lead to heat loss or water infiltration. Look for gaps around vents or pipes that penetrate the roof, as well as any missing or damaged shingles or flashing. Make sure that gutters and downspouts are clear of debris so that water can flow freely.

Improve Attic Insulation

One of the main causes of ice dams is inadequate insulation in your attic. Without proper insulation, heat from your home will escape through the roof and melt snow on contact. To prevent this from happening, make sure that your attic is properly insulated according to local building codes.

Ensure Proper Ventilation

In addition to insulation, proper ventilation is key to preventing ice dams. Ventilation allows air to circulate through the attic and helps regulate temperature and moisture levels. Make sure that vents are clear of obstruction and that there is enough ventilation for the size of your attic space.

Install Ice and Water Shield

If you live in an area prone to heavy snowfall or frequent freeze-thaw cycles, consider installing an ice and water shield along the eaves of your roofline. This self-adhesive membrane acts as a barrier between roofing materials and any water infiltration caused by melting snow.

Use Heat Tape

For areas where traditional prevention methods may not be enough, such as valleys or low-pitched roofs, heat tape can be a useful tool for preventing ice buildup. Heat tape is an electric cable that can be installed along problem areas to keep them warm enough to prevent melting snow from refreezing into ice dams.

By following these tips for preventing ice dams on your roof, you can avoid costly repairs and ensure a safe winter season for you and your family.