As winter blankets the landscapes in Calgary with its icy grip, homeowners face a silent threat that lurks atop their roofs: ice damming. While the picturesque icicles hanging from eaves may seem harmless, they often indicate a deeper problem that can wreak havoc on your home's structure and integrity. In this blog post, we'll delve into the phenomenon of ice damming, its causes, effects, and most importantly, how to prevent it from damaging your roof and property.
What is Ice Damming?
Ice damming occurs when snow on the upper portions of a roof melts, runs down toward the eaves, and refreezes, forming a barrier or "dam" of ice. This ice prevents melting snow from properly draining off the roof, leading to water pooling behind the dam. As this water accumulates, it can seep under shingles, penetrate into the attic, and eventually make its way into the interior of your home, causing water damage, mold growth, and structural issues. Because Calgarians get to enjoy beautiful Chinooks, we also have to manage and deal with continuously fluctuating temperatures, which is why we see Ice damming so frequently.
Causes of Ice Damming:
Several factors contribute to the formation of ice dams:
· Inadequate Insulation: Poor insulation in the attic allows heat from the interior of the house to escape, warming the roof deck causing snow to melt.
· Poor Ventilation: Inadequate ventilation in the attic traps warm air, further contributing to snowmelt on the roof.
· Sun Exposure: Homes with south-facing roofs or those exposed to direct sunlight may experience more rapid snowmelt, increasing the likelihood of ice dam formation.
· Roof Pitch: Roofs with shallow pitches or complex angles are more prone to ice damming as they provide less efficient drainage for melted snow.
Effects of Ice Damming:
Ignoring ice damming can lead to various detrimental effects on your home:
· Water Damage: The water trapped behind the ice dam can infiltrate the roof and seep into the interior, causing damage to ceilings, walls, insulation, and structural components.
· Mold and Mildew: Moisture accumulation within the home promotes the growth of mold and mildew, which can pose health risks and require costly remediation efforts.
· Decreased Energy Efficiency: The heat loss contributing to ice dam formation also results in increased energy consumption and higher utility bills.
· Roof Damage: The weight of ice dams can damage roofing materials, leading to leaks and premature deterioration of the roof.
Preventing Ice Damming:
Taking proactive measures to prevent ice damming is crucial for protecting your home and preserving its integrity:
· Proper Insulation: Ensure your attic is adequately insulated to minimize heat transfer from the interior of the house to the attic and roof.
· Improved Ventilation: Install vents and fans in the attic to promote airflow and regulate temperature, preventing warm air buildup.
· Roof Maintenance: Keep your roof clear of debris and inspect it regularly for signs of damage or deterioration that could contribute to ice dam formation.
· Snow Removal: Safely remove excess snow from the roof using a roof rake or hire professionals to prevent snow buildup and reduce the likelihood of ice damming.
· Heat Cables: Consider installing heat cables along the eaves to melt snow and prevent ice dams from forming.
For Calgarians, Ice damming poses a significant threat to the structural integrity and safety of your home, but with proper understanding and preventive measures, you can minimize the risk of damage. By addressing factors such as insulation, ventilation, and snow removal, you can safeguard your roof and property against the frozen menace of ice dams, ensuring peace of mind during the winter months. Remember, a proactive approach to maintenance and prevention today can save you from costly repairs tomorrow. Give us a call today for more information about the service we offer, and how we can help you protect your home during the winter months!
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