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RoofEverything You Need to Know About Snow Guards
Whether you call them snow guards, snow barriers, snow deflectors, or snow stoppers, these devices prove helpful when it comes to preventing snow-related damages and injuries during the winter months.
As a matter of fact, if you have a pitched roof, you neither want ice or snowfall to injure passers-by nor do you want it to damage surrounding structures, especially if it’s that of your business! So, in addition to clearing your roof on a regular basis, consider installing snow guards to reduce potentially dangerous snow avalanches.
Given their name, it’s not surprising that these devices fitted on sloped roofs are used to retain, deflect, or even out the weight of accumulated snow throughout the numerous snowfalls that occur in regions like Quebec. And, they’re usually suited to most roof coverings (metal, shingles, tiles, etc.).
Aside from protecting pedestrians and whatever else is nearby (cars, gutters, shrubs, skylights, plumbing, stairs, etc.), snow guards can spare you the hassle of a lawsuit and a whole lot of remorse. Furthermore, these devices will allow you to save money by extending your roof's durability, thus delaying premature wear and tear, especially in the case of leaks.
Nowadays, due to technological innovations in the construction and design industry, there are endless roof colours and shapes. Fortunately, snow or icefall guards are keeping up with the trends. They’re available in a variety of materials such as stainless steel, polycarbonate, zinc, copper, and aluminum, and you can match their colour to your roof or even to your desired style with patterns or mouldings.
There are two main snow guard styles:
Made up of vertical joints and rails (or pipes), they give off a fence-like look. Depending on the model chosen, these pipes (or rails) can hold an enormous amount of snow and are perfectly suited for residential buildings/houses as well as large buildings (businesses, institutions, industries, etc.). Although not very subtle apparatus, some people may find them rather charming and rustic-looking.
Mostly used on residential buildings, these little aesthetically pleasing devices are fitted according to a strategic pattern designed by a specialist.
Unlike the previous model, this one isn’t only found on the edge of the roof to contain heavy loads of snow but rather installed in problematic and hazardous areas to evenly distribute the amount of snow. This ensures the snow will melt more gradually and will not break off in massive, dangerous clumps.
These units are also used to prevent ice from accumulating in corners, such as along the edges of skylights or chimneys.
Above all, consult with a professional before shopping around and installing any snow guard mechanism. The type, quantity, and method of installation must be tailored to your situation (roof pitch, type of roof covering, the load-bearing capacity of the structure, regional weather conditions, etc.).
Also, if your roof has gutters, a heating system, solar panels, and so on, the engineer will have to adapt the installation pattern accordingly. They’ll also have to consider areas where snowfalls might be particularly dangerous, such as above front doors and sidewalks.
Bottom line: These devices cannot be installed haphazardly. By doing so, you risk blowing your money by aggravating snow build-ups or assuming that you’re well protected when that isn’t the case. The safety of others hangs in the balance, especially if we’re talking about the roof of your business, and heavy heavy foot traffic is a commonality. Not to mention if you have young children…
Interestingly, installing snow guards won’t puncture your roof as they’re fastened between two panels or on the sides, and anchored to the structure instead of the sheathing. The ideal number of snow guards is determined according to the surface area to be covered and the areas where elevation changes are more significant. Secured with corrosion-resistant metal screws and made of high-performance alloys, they have a good warranty and are quite durable.
Pipe- or rail-type snow guards are simpler and less risky to install yourself, as they simply run along the edges of your roof. They usually come in 3 sizes and have 1 to 3 tubes that fit into shark fin-shaped plates. They’re typically spaced 15 to 20 inches apart and have up to 5 anchor points.
Hex-shank drill bits
First, mark a perpendicular spot at about 1.5 feet from the roof’s edge.
Line sealing tape along where you’ll be screwing in the clamps (or brackets that hold the pipes).
Secure the clamps (or brackets) by screwing in the screws wherever necessary, then insert the pipes while making sure the plastic protectors are in place.
Cut any excess pipe when fixing the last bracket or clamp.
Now we’d say you’re ready to face the next winter season with peace of mind!
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Last modified 2023-11-07
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