section-1bd99f8
If you live in a region where winter means heavy snowfall, then you're probably familiar with the phenomenon of rooftop avalanches. This common occurrence can cause serious property damage and may even threaten life. Luckily, you have a reliable solution: installing snow guards on your metal roof. This step-by-step guide will walk you through the process.
The Importance of Snow Guards on a Metal Roof
So, why do you need a metal roof for snow guards? Here are some of the advantages they offer.
Protects Property and People
Snow guards, also known as snow stops, snow fences, or snow retention systems, prevent damage from sliding snow off your roof. They are designed to hold the snow load on your roof and let it melt gradually or fall off in small amounts. This reduces the risk of a rooftop avalanche and protects people, landscaping, and other property on the ground from being damaged by falling snow and ice.
Extends Lifespan of Your Roof
Metal roofs are designed to allow snow to slide off. However, the weight of the accumulated snow and the sudden snow avalanches can damage your gutters and the roof's edge. Snow guards protect your roof system by spreading the snow load across the entire roof surface.
Reduces Ice Damming
Installing snow guards on your metal roof can also mitigate the formation of ice dams. This is especially important on metal roofs, where sliding snow can rapidly accumulate at the roof edge, creating perfect conditions for ice damming.
section-3494264
Different Types of Snow Guards for Metal Roofs
When it comes to snow retention on metal roofs, a broad array of snow guards are available. These devices can be broken down into key categories based on design and functionality. Let's examine some of the most common types:
Pad Style Snow Guards
Pad-style snow guards are among the most commonly used snow retention systems. They are small, often triangular or rectangular devices affixed to the roof's surface. Pad-style snow guards are typically installed in multiple rows in a staggered pattern. They work by holding back the snow in small sections, allowing it to melt or fall off slowly.
Pipe-Style Snow Guards (Snow Rail)
A snow rail is a continuous snow guard system designed to retain snow across the entire installation length. A snow rail consists of cross members (the "rails") that run parallel to the eave, and they're held in place by brackets attached to the roof. They're particularly effective on low-pitched roofs or areas with heavy snow loads.
Clamp-on Snow Guards
Designed specifically for standing seam metal roofs, these snow guards attach to the seam of the roof without penetrating the roof surface. They can be either pad style or rail style. The clamp-on feature allows for a secure installation that doesn't compromise the roof's integrity.
Snow Fences
Snow fences are a heavy-duty option ideal for extreme snowfall areas. Like snow rails, they span across the roof but are typically larger and capable of handling larger snow loads.
Snow Cleats
Snow cleats are small metal pieces installed at the roof's edge. They serve to interrupt the path of sliding snow, slowing its descent off the roof. They're less noticeable than larger snow guard systems, making them a preferred choice for homeowners concerned about maintaining the aesthetic appeal of their roofs.
section-a1cbddc
Installing Snow Guard System on Your Roof
Follow this guide to install the guards effectively:
1. Decide Which Snow Guards to Install
There are several types of snow guards for metal roofs, so choosing the right one is crucial. You need to know the different types and how they work. Follow this guide to choose:
Consider the Type of Your Metal Roof
The type of your roof, whether a standing seam metal or another, will dictate the kind of snow guard you can install. Clamp-on snow guards, for instance, are designed specifically for standing seam roofs and attach to the seam without penetrations. If your roof doesn't have standing seams, you may have to use adhesive to attach the snow guards.
Analyze Snow Load Data for Your Area
Snow load refers to the amount of snow, measured in pounds per square foot, that your roof must support. It's crucial to know the average snowfall in your area to determine the type and quantity of snow guards you'll need. Areas with heavier snowfall may require continuous rail-type snow guards like a snow rail, while areas with less snowfall can benefit from pad style or individual snow guards.
Evaluate the Roof Slope and Size
The steeper and larger your roof, the more snow it can accumulate, leading to more significant sliding snow events. If you have a steep and large roof, you'll need a robust snow retention system, possibly with multiple rows of continuous snow guards. If your roof has a lower slope and is relatively small, a single row of snow guards may be enough.
Consider the Installation and Maintenance
Certain types of snow guards require professional installation, while others can be a DIY project. Consider your comfort level with installing the snow guards yourself and the time you have available for maintenance. Additionally, remember that no matter the type of snow guard you choose, proper installation is critical for it to function effectively.
2. Determine the Quantity and Placement of Snow Guards
Next is to install snow guards to determine the quantity and placement of these devices. The number of snow guards you'll need will depend on the roof's slope, the snow load data for your location, and the roof material and type. Manufacturers often provide calculators or guidelines for this.
For pad-style guards, place them in a staggered pattern across the lower half of the roof surface where snow accumulates. These will typically be installed in a single line along the eave for a snow rail or rail-type system.
3. Measure and Mark Your Roof
Next, measure your roof and mark where each snow guard will be installed. The manufacturer's instructions will likely suggest installing discontinuous snow guards about every 12 inches or so, and each row of snow guards should be 24 inches apart. For continuous systems, these will typically be installed at the eave and ridge, and sometimes at a midpoint on the roof, depending on the roof pitch and snow load.
section-68d751d
4. Install the Snow Guards
Follow the manufacturer's instructions to install the snow guards. For pad-style snow guards on a standing seam metal roof, attach the snow guard to the seam clamps and clamp them to the standing seams. For a snow rail system, install the rail brackets to the standing seams first using seam clamps, then attach the cross members to the brackets.
If using adhesive, ensure the roof surface is clean and dry, apply the adhesive to the guard, and then affix the snow guard to the marked locations on your metal roof. Allow the adhesive to cure according to the manufacturer's instructions before testing the snow guard's stability.
5. Inspect and Adjust
Once you've installed the snow guards, do a thorough inspection to ensure each one is secure and properly aligned. If necessary, make adjustments to ensure the snow guards are installed correctly and can effectively manage snow retention.
6. Monitor the Snow Guard System
After installing snow guards, keep an eye on your metal roof, especially in winter. Monitor how the snow guard system handles the snow load, how snow accumulates, and how it affects the rest of the roof structure. Regular inspections will help identify potential problems early and maintain the efficiency of the snow retention system.
Conclusion
Installing guards on a metal roof is a proactive step in preserving your property's quality of life and preventing potential property damage. While the installation process involves careful planning and precision, the peace of mind that comes from knowing your home is safe from roof avalanches is well worth the effort.
Consider working with a professional roofer. Equity Roofs can take out this hustle and install the snow guards efficiently for you.
Read also our blog on Do Metal Roofs Require Maintenance?.