#United States #Portland #Home Safety #Metal Roofing #Snow Guards

The Dangers of Snow Accumulation on Roofs

As winter sets in and snowfall begins, homeowners must be vigilant about the hazards posed by accumulating snow on roofs, especially metal ones. With the first day of winter approaching on December 21, numerous regions in the U.S. and Canada are already facing sub-zero temperatures. The Metal Roofing Alliance (MRA) has issued a warning regarding the dangers of roof avalanches, which can happen when heavy snow, having nowhere to go, suddenly slides off a roof, potentially causing serious damage to anyone or anything below.

Understanding Snow Guards

Snow guards are crucial in preventing these potentially dangerous avalanches. They are designed to hold back the snow and encourage it to melt gradually, minimizing the chances of a sudden fall. Renee Ramey, the Executive Director of MRA, emphasizes their necessity, especially in regions prone to freezing weather. It's not just about safety; a well-installed snow guard system can effectively protect both individuals and property beneath it.

Why Proper Installation Matters
However, simply having snow guards is not enough. Their effectiveness relies on proper design and installation, which should adhere to fundamental engineering principles. Homeowners and installers must work together to ensure that snow guard systems are tailored to their specific roofs. Here are some important considerations:

1. Local Snow Load Awareness:
Contact your local building officials to understand the appropriate ground snow loads for your area. This information is vital in calculating the potential snow load your roof can bear.

2. Evaluate Roof Characteristics:
Factors such as your roof's material, slope, profile, and the length of rafters all influence snow guard placement. Resources from manufacturers like S-5! can assist in assessing your roof's specifications. They also offer a convenient online Snow Guard Calculator.

3. Strategic Placement:
The location of snow guards is critical. They must be placed based on an understanding of how snow accumulates and behaves on your roof. Protecting the entire eave line is advisable rather than focusing on isolated areas, which can lead to unpredictable behavior of snow shedding.

4. Quality Products:
Components of snow guard systems should be manufactured from durable, non-corrosive metals, matching or exceeding the lifespan of your roof. Homeowners need to avoid unreliable products that lack mechanical fastening or are poorly constructed.

The Absence of Codes and Standards

Currently, there are no specific building codes or requirements dictating the proper installation of snow guards. This lack of regulation underscores the importance of partnering with experienced installers who use quality materials and best practices recognized by organizations such as the Metal Construction Association (MCA). Homeowners are encouraged to download MCA's resource on qualifying snow retention systems for additional guidance.

Final Thoughts

By taking proactive measures, homeowners can significantly enhance safety during winter storms. Investing the time to plan and install a reliable snow guard system will ensure peace of mind throughout the colder months. A properly designed system can help protect your family and property from the threats posed by winter weather.

For homeowners looking for more information on residential metal roofing and snow guard systems, the Metal Roofing Alliance provides educational resources and support. Understanding the critical role of snow guards can make all the difference in ensuring safety and stability in the winter months ahead.