An Educational Guide from Roofing Outfitters
What is an Ice Dam?
Ice dams are a winter hazard for Colorado homeowners. An ice dam forms when melting snow on the warmer upper portion of your roof melts and flows down then refreezes at the eave/gutter line, creating a buildup of ice. This ice will trap additional melting snow and water, preventing proper drainage and causing water to get beneath the shingles. Left unchecked, ice dams can cause walking danger below as roof leaks thus costly repairs.
Why Do Ice Dams Happen?
Warm Air Leaks into the Attic: Heat naturally rises from your home into the attic.
Snow Melts on the Roof Surface: This heat causes snow on the roof to melt.
- Ice Buildup at the Roof Edge: As the water flows down to the colder roof edges, it refreezes, forming an ice dam.
- Water Backup: The ice dam blocks further runoff, causing water to pool behind it. This water will be forced into your roof, damaging shingles, insulation, and even your interior walls.
Why Roofing Materials Alone Can’t Prevent Ice Damming Issues
It’s important to remember that sloped roofing materials are designed to shed water. Shingles/Tile and other roofing components work well under normal conditions by allowing water to flow off the roof. However, when it comes to ice damming, even the best roofing systems can’t be entirely leak-proof. When water pools behind an ice dam, it can back up under shingles and seep into your roof structure, leading to leaks that standard roofing materials cannot prevent.
The Risks of Ignoring Ice Dams
Allowing ice dams to build up can have serious consequences for your home:
- Roof Damage: Water trapped by ice dams can seep under shingles, causing leaks and damage to your
roofing system. - Interior Water Damage: Leaks from ice dams can result in water damage to your attic, walls, and ceilings.
- Mold and Mildew Growth: Damp insulation and walls create an ideal environment for mold and mildew, which can impact indoor air quality.
- Increased Heating Costs: Gaps and leaks in insulation lead to more heat loss, raising your energy bills.
Preventing Ice Dams
Fortunately, there are ways to protect your Colorado home from the risks of ice dams. Here are some preventive
steps to consider:
- Safely Remove Snow Buildup: After a heavy snowfall, use a roof rake to clear snow from the edges of your roof. Be careful not to damage shingles or attempt to climb on the roof in icy conditions.
- Install Heat Cabling: They are wires encased in rubber insulation materials and with aluminum foil covering. When installed on standing seam roofs, these cables provide an electrical way to the roofs, safely letting off snow and ice.
- Insulate Your Attic: Proper insulation keeps your attic cooler, reducing the amount of heat that escapes and melts the snow on your roof.
- Seal Air Leaks: Use caulk and weather strip to seal leaks around vents, ducts, and other attic openings on your ceiling to prevent warm air from entering.
- Ensure Proper Ventilation: Good attic ventilation maintains a cooler temperature, helping to prevent snowmelt on the roof.
Don’t let ice dams damage your Colorado home. Reach out to Roofing Outfitters for roof snow removal, heat cable install, winter roof inspection, or to learn more about our services. We’re committed to helping you keep your home safe, dry, and energy-efficient all season long.
