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Tube Snow Retainer
To enhance safety during the winter months for residents and nearby equipment, specially designed passive protection elements—tube snow retainers—have been developed. Their principle of operation involves gradually releasing snow masses in small portions, preventing them from sliding off in a dangerous avalanche-like manner. Timely installation of these systems helps avoid accidents and unnecessary future expenses.
It should be noted that in European countries, the presence of snow retainers is mandatory for buildings with sloped roofs, as well as a requirement when issuing insurance policies.
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Why Are Snow Retainers Needed?
Snow retainers are designed to protect people from various dangers and accidents that may occur when large snow masses slide off a roof. Key risks include:
- Threat to human health and life;
- Damage to vehicles parked near the house;
- Sagging of roofing material;
- Damage to gutters, dislodging of hangers, and bending of downspouts;
- Breakage of shrubs, trees, flowers, and decorative plantings.
Structural Features of Tube Snow Retainers
Tube snow retainers are available in two forms: round and oval, with a pipe diameter of 25–30 mm and wall thickness of 1.5 mm. The set includes two 3-meter-long pipes and three steel supports with a thickness of 2–2.5 mm. Thanks to anti-corrosion coating on both the retainers and mounting brackets, these systems offer a long service life.
Snow retainers are manufactured from various metals: steel, aluminum, or copper. However, it’s important to note that the copper version should only be used on copper roofing, as combining it with other metals can cause galvanic corrosion, leading to roof material degradation and weakening of bracket fasteners.
Installation of Snow Retainers
Tube snow retainers are typically installed on roofs made of the following materials:
- metal roofing tiles,
- corrugated metal roofing,
- corrugated steel sheets.
Placement of snow retainers is determined based on snow load, roof slope length, and angle of inclination. Depending on these factors, the spacing between brackets is calculated and may be 600 mm, 900 mm, or 1200 mm.
It is best to plan snow retainer installation before starting roofing work. If this was not done, it’s not a problem—snow retainer components can be securely attached to almost any roof surface using special screws with sealing sleeves made from weather-resistant rubber, ensuring roof waterproofing.
Snow retainers should be installed parallel to the eaves and must be placed directly above dormer windows. Installation can be done in a straight row by connecting individual sections, or in a staggered pattern. For long roof slopes (over 5.5 meters), multiple rows of sections are recommended.
It should be noted that tube snow retainers will not negatively affect the roof’s appearance. They blend seamlessly into the overall architectural design, as modern construction markets offer snow retainer systems that match the color of the roofing material.
In conclusion: a snow retainer is a combination of protective measures and devices aimed at preventing snow from sliding off a roof. Snow retention is a crucial safety feature that protects you, your family, and your property from potential damage.
