Winters can showcase both the best and the worst of your solar setup. If you live in a place where snow covers the roofs, you may have wondered about the impact of snow accumulation on solar panels. The answer? Without proper protection, your risk is not only the sudden (or not so sudden) avalanche (just outward, rather than downward), but also damage to property, injury to people and costly repairs. That’s exactly why more and more home and solar pros are installing solar panel snow guards. This guide will help you to understand what snow guards are, why they matter, different kinds of snow guards available on the market for solar panels, and factors to consider when selecting, installing, and maintaining this piece. You’ll walk away with the expertise it takes to safeguard your solar investment year after snowy year.
Learn About Solar Panel Snow Guards
A snow guard for solar panels performs the function of retaining the snow on the sides of the solar arrays to prevent it from sliding and causing large avalanches that can be dangerous to people working under them. They are products like Soltro snow guards, engineered to account for the specific angles and surfaces of panels and let accumulated snow melt and fall off in small quantities.
And this is only preserving the structural integrity of the panels – it’s your property and anyone underneath keeping safe as snow thaws in winter. The correct snow guard that bridges climate practicality and panel technology .
Why Snow Guards Are a Necessity for Solar Panels
You’d think all that snow would roll right off all those solar panels. Panels are built to weather winter, but they’re slick and smooth. This results in snow accumulating, compacting and suddenly releasing. Here’s why snow management can really, really matter for solar owners:
Preventing Rooftop Avalanches
After a heavy snowfall, you may have the sun all of a sudden come out, melting sheets of snow to slide off your panels and crash onto the ground below. This avalanche action can dent landscaping, rip off gutters, dent cars, and, most important, injure people or pets. The potential danger can be limited with a solar panel snow guard.
Securing Your Solar Panels and Roof from Pigeons
Without snow guards to stop ice and snow from sliding, the weight and movement of the frozen precipitation can dislodge panels or put stress on mounting brackets. This can shave years off the life of your solar system and present a risk to the health of your roof.
Peak Solar Performance, All year long
Your panels could be exposed to get a little bit better production after a large dump, but if the panels or the roof are damaged in the process, any time/function gained is quickly lost. Snow management on one’s terms means no emergency shutdowns, repairs or danger to personnel.
Insurance and Building Code Support
Some insurers (especially in snowy areas) or local ordinances may also require that snow is removed from the arrays, in order to minimize liability and damage.
Types of Solar Panel Snow Guards to Consider
Snow guards are not the same. Knowing the primary types will help you select the right system for your home, your climate and your panels.
Individual Snow Guards
These apparatuses are attached to the panel or in close proximity to the lower edge thereof. They’re usually constructed out of tough plastic or metal and they’re spaced out so that they trap snow and break it into chunks.
- Pros
Affordable
It’s really simple to set up on a small/medium arrays
- Cons
For larger systems can take many units
Can be conspicuous
Snow Retention Systems for Railed Roofs
Above: These systems employ aluminum rails running horizontally beneath or in some cases clamped directly to the panel’s frame. They create an uninterrupted barrier that prevents snow from falling all at once.
- Pros
High effectiveness
Uniform appearance
Suitable for large arrays
- Cons
Higher cost
More complex installation
Custom or Hybrid Systems
Soltro, for example, has modular setups which are flexible and combine the best of both worlds. A few snow guards can be modified to fit unique roof pitches, and or panel configurations, or heavier than usual snow loads.
- Pros
Custom fit
Solar Panel Integration Ready
- Cons
Sometimes more expensive
Requires professional installation
Which Type of Snow Guard is Best for Your Solar Panels?
Each case is different, but these guidelines can help guide your choice for the best mix of value and safety.
Color Coordinate to Your Roof & Snowload
Think about it how much snow your area eventually gets. In areas with frequent heavy snow, you need instead are guards so strong and close-set that they resemble models designed for leaf-laden gutter protection. Steeper roofs require more retention, but low-sloped roofs could require fewer accessories.
Panel Type and Mounting Factor
Some snow guards are only compatible with certain panel models, so be sure to check compatibility. If your panels have a frameless or specialized mounting, consult your equipment maker or look into companies like Soltro that makes panels with flexible attachments.
Budget and Aesthetics
When it comes to system types, those with rails are higher-performing, but more expensive upfront. Single guards are more cost-effective. Choose designs and finishes that complement your home’s exterior and don’t disturb curb appeal.
Do It Yourself or Professional Installed
Are you handy with tools? Smaller arrays are often doable by the confident homeowner, but for larger or custom setups, it typically pays to hire a professional solar installer or roofer.
Warranty and Reviews
Stick to established brands with strong warranties. Customer reviews can tell you how things hold up in the long term, and what kind of installation challenges to look out for, particularly in your area.
How To Install Solar Panel Snow Guards
The right installation is going to make all the difference in the world when it comes to how well your snow guards protect your home and investment.
Pre-Installation Checklist
- Examine your solar panels and roof for previous damage.
- Measure your solar array to find out how many guards or rails you need.
- Make sure the snow guard model fits your panels and mounting.
Installation Steps
- Layout Planning
Mark the positions of each guard or rail, and determine where there may be vulnerable eaves, walkways and driveways beneath.
- Attachment
Install safety guards or rails as recommended by the manufacturer. Follow the instructions as to the type of hardware to use, and do not over tighten, as this can deform panel frames.
- Spacing
Make sure the guards are added to separate the snow and distribute the load.
- Seal and Test
Caulk all through-deck penetrations for water tightness. After installation, test fixtures for motion very carefully.
Safety Reminders
- Never install snow guards alone or when it is icy.
- If you’re not comfortable up high, hire a professional installer.
How to Properly Take Care of Your Solar Panel Snow Guards
Snow guards for solar panels are built to last, but a little maintenance can take them further.
Seasonal Checks
- Autumn:
Check for loose hardware, missing pieces, or roof damage in advance of snow.
- Winter:
Following large snowfalls, visually inspect guards to make sure they are in place and free of obstruction. Look through binoculars or a telescope if access is perilous.
- Spring:
Check for worn or rusty units, or any that have become loose. Tighten and clean as needed.
Cleaning
- Do not try to remove snow from solar panels or racks unless you are properly prepared and trained.
- Do not use hard brooms or roof rakes marked for roof use and do not apply extreme force.
Professional Assessments
Have a professional roofer or solar installer look at the systems every year to make sure they’re still holding tight and working well, particularly after harsh winters.
Protecting Your Solar Investment This Winter
The beautiful thing about snow however, can also be the potential downfall of your renewable energy investment. The correct solar panel snow retention system, whether it’s Soltro rail or individual guards, can make a world of difference in protecting your panels, preserving your property, and safeguarding your home and loved ones. Compare your roof, climate and array to determine what type of system is best for you. Don’t wait for the snow to come down before you act, add snow guards to your winter prep list and put your mind at ease (and your solar panels back to work) for the entire season.
Looking for more tips or product recommendations? Don’t hesitate to contact your nearest solar supplier, or take a look at Soltro’s snow guard options for personalized advice and assistance.