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Do Snow Guards Prevent Ice Dams? An Exploration

Understanding how products work on your property is naturally important in many settings, and those where you're utilizing snow guards for your metal roof are a great example. A common question that often arises here: Do snow guards prevent ice dams from forming and creating problems on the roof?

At Supply Maverick, a division of Mid Michigan Metal Sales, we're here to offer a wide range of metal roof snow guards from top manufacturers like Snow Defender, plus products like metal roofing screws and foam closure strips to fully secure and protect your roof. Here are some basics on what ice dams are, whether snow guards are meant to impact them in any way, and some other important considerations.

What Are Ice Dams?

Before we dive into any potential connections between snow guards and ice dams, let's define what these dams are in the first place. In essence, an ice dam is a build-up of melting snow that becomes frozen at your roof's edge. These can become thick and heavy over time, leading to several potential issues with your metal roof:

  • Damage: First and foremost, ice dams can cause damage to the roof itself if not addressed quickly enough. As they form and grow, they put significant weight on certain areas of the roof, which can lead to dents, punctures or even worse.
  • Water leakage: As ice dams block the natural flow of melting snow, they can cause water to pool and potentially leak into your property. This can lead to costly repairs and potential damage to your belongings.
  • Gutters: In some cases, ice dams can also damage or even pull down gutters that are attached to the roof.

Do Snow Guards Prevent Ice Dams?

Now that we understand what ice dams are and the problems they can cause, let's address whether snow guards have any impact on preventing them. This is actually a bit more of a nuanced answer than you may have assumed. 

From a design standpoint, snow guards are not actually meant to prevent ice dams from forming - but they are meant to prevent both the conditions that allow them and the kinds of damage they often cause. This is because snow guards stop the accumulation of snow in specific areas of the roof, which can then prevent heavy build-up that leads to ice dams.

Furthermore, snow guards stop snow and ice from crashing onto belongings below, like people or cars. This reduces the risk of accidents and injuries, making them a valuable addition for both residential and commercial properties.

Solutions to Combine With Snow Guards

Now, if you live in an especially snowy and cold area, it's possible for ice dams to still exist despite the presence of snow guards. This is because in these cases, snow buildups can take place below the lowest snow guard point, in such significant quantities that ice dams form despite the small space available. 

Luckily, there are some additional solutions you can combine with snow guards to further reduce the risk of ice dams. These include:

  • Roof heating cables: These are installed on your roof and can melt away snow and ice before they have a chance to form into damaging ice dams.
  • Proper insulation: Insulation along your roof's edge can prevent heat from escaping and melting snow in the first place, which stops both ice buildup and any potential water leakage.
  • Professional ice dam remediation: If you do experience an ice dam despite using snow guards and other prevention methods, it's important to address the issue right away. Call in a professional for safe and effective removal.

Placement is Vital

Both in terms of snow guards and any additional solutions you're considering, proper placement is vital. In fact, it's the single biggest factor in preventing ice dams and related issues on your metal roof.

For snow guards specifically, they should be installed at least 12 inches from the roof's edge to allow for proper ventilation and draining. They should also be evenly spaced - too few or too many can both lead to issues.

If using roof heating cables, proper placement is also critical. These should be installed along the edges of your roof where ice dams are most likely to form.

Finally, when addressing insulation and heat loss, make sure this is done by a professional who can properly assess and adjust your property's unique needs.

While snow guards may not directly prevent ice dams from forming, they play a crucial role in protecting your metal roof from damage and potential water leakage. Make sure to combine them with other solutions and ensure proper placement for maximum effectiveness. 

At Supply Maverick, we're proud to offer top-quality products that help keep your property safe and secure. Don't hesitate to reach out with any questions or concerns - we're here to help with all your metal roofing needs! 

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