Get Your Free Quote
Follow Us

How to Stop Snow from Sliding off Metal Roofs?

Roof Raking and Snow Removal

How to Stop Snow from Sliding off Metal Roofs?

Snow sliding off a metal roof can pose various challenges and risks, such as damage to property, safety hazards, and structural issues. If you live in an area prone to heavy snowfall, it’s essential to take preventive measures to avoid snow slides and their potential consequences. In this article, we will explore the reasons behind snow slides on metal roofs, the importance of prevention, and effective solutions to keep snow in its place.

Installing snow guard

Understanding the Problem: Why Snow Slides off Metal Roofs

Metal roofs have unique characteristics that can contribute to snow sliding off more easily compared to other roofing materials. One primary reason is their smooth surface, which allows snow to slide down quickly. Additionally, metal roofs tend to be more slippery due to the absence of friction that can hold the snow in place.

Importance of Preventing Snow Slides

Preventing snow slides from metal roofs is crucial for several reasons. Firstly, the sudden release of a large amount of snow can pose a danger to people or objects below. Imagine the risk of an unexpected snow avalanche falling from your roof. Moreover, snow slides can cause damage to gutters, downspouts, and landscaping around your property. It can also lead to ice dams forming along the roof’s edge, resulting in water leaks and potential structural damage.

Factors Affecting Snow Sliding off Metal Roofs

Several factors influence the propensity of snow sliding off metal roofs. Understanding these factors can help you choose the most suitable preventive measures for your specific situation.

Roof Pitch and Design

The pitch or slope of a roof plays a significant role in snow retention. Steeper roofs with higher pitches are more likely to prevent snow slides since the snow has a harder time gaining momentum. On the other hand, roofs with shallow pitches are prone to snow sliding off more easily.

Snow Load and Accumulation

The amount of snow accumulating on your roof can contribute to snow slides. Factors such as local climate, snowfall frequency, and the roof’s ability to shed snow also affect snow load and accumulation.

Roof Temperature and Heat Loss

The temperature of the roof surface plays a vital role in snow retention. If the roof’s temperature rises due to heat loss from the building below or from solar radiation, it can cause the snow to melt and slide off. Heat loss through the roof can also create an uneven snow melt pattern, leading to potential slides.

Solutions to Prevent Snow Sliding off Metal Roofs

To prevent snow slides and the associated risks, there are several effective solutions available. Let’s explore some of them:

Roof Raking and Snow Removal

Snow Guards and Snow Retention Systems

Snow guards are devices installed on metal roofs to hold the snow in place, preventing it from sliding off suddenly. They are typically placed strategically along the roof’s surface, interrupting the snow’s natural downward movement and allowing it to melt or gradually release in smaller quantities. Snow retention systems, including various types of snow guards, can be customized based on your roof’s design and specific needs.

Heating Systems

Heating systems, such as roof de-icing cables or heat panels, can be installed on metal roofs to melt snow and prevent ice dams from forming. These systems provide a continuous source of heat to keep the roof surface warm and prevent snow accumulation and sliding. However, they require professional installation and should be used cautiously to avoid damaging the roof.

Roof Raking and Snow Removal

Regular roof raking and snow removal can be an effective way to prevent snow slides. Using a long-handled rake, you can safely remove snow from the roof while standing on the ground. It’s essential to start raking as soon as snow accumulates and avoid letting it reach dangerous levels. Remember to follow proper safety measures and be cautious not to damage the roof while removing the snow.

Insulation and Ventilation

Improving insulation and ventilation in your attic or roof space can help maintain a more consistent roof temperature. Proper insulation prevents heat loss, reducing the chances of snow melting and sliding off. Adequate ventilation helps equalize the roof temperature, preventing uneven snow melt and potential slides.

Snow Sliding off Metal Roofs

Installing Snow Guards on Metal Roofs

Installing snow guards on your metal roof requires careful consideration and adherence to proper techniques. Here’s a step-by-step guide to help you through the process:

Types of Snow Guards

There are various types of snow guards available, including pad-style guards, pipe-style guards, fence-style guards, and more. Each type has its specific features and installation requirements. It’s crucial to choose the right type based on your roof’s design, material, and aesthetic preferences.

Proper Placement and Spacing

The correct placement and spacing of snow guards are crucial for their effectiveness. The number of snow guards required depends on factors like roof pitch, snow load, and roof dimensions. Consulting a professional or following manufacturer guidelines can help determine the optimal placement and spacing for your specific roof.

Installation Process

Installing snow guards typically involves drilling holes in the roof surface and attaching the guards securely. The exact installation process may vary based on the type of snow guard and your roof’s characteristics. It’s recommended to hire a professional for the installation to ensure proper attachment and prevent roof damage.

Maintaining Snow Guards and Other Preventive Measures

Once snow guards are installed, it’s important to maintain them properly. Regular inspections should be conducted to ensure the guards are securely attached and free from any damage. Clearing any snow or ice buildup around the guards will help maintain their effectiveness.

In addition to snow guards, it’s essential to keep an eye on other preventive measures you’ve implemented. Check for any signs of damage or wear and address them promptly to ensure their continued effectiveness.

Installing snow guard


Preventing snow from sliding off a metal roof is crucial to protect your property, ensure safety, and avoid structural issues. Understanding the factors that contribute to snow slides and implementing suitable preventive measures can make a significant difference. Consider options like snow guards, heating systems, roof raking, insulation, and ventilation to find the most effective solution for your specific roof and snowfall conditions.

Remember, proper installation and maintenance are key to ensuring the long-term effectiveness of snow retention systems. Regular inspections and proactive measures will help you avoid snow-related hazards and maintain a secure and functional metal roof.

Are there any alternatives to snow guards for preventing snow slides?

Yes, there are alternative methods for preventing snow slides. Some options include using heated cables or panels, roof raking, and implementing proper insulation and ventilation to control roof temperature. The choice of alternative methods depends on factors like your roof’s characteristics, budget, and personal preferences.

Monarchy Roofing