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Système de barres doubles pare-neige à visser (1,8 m) pour toitures métalliques | Haute rétention de charge | Canada Snow Guards
Poteaux en bois de 9 po à panneau plat (avec étriers tous les 18 po)
$375.00 CAD
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Système de barres doubles pare-neige à visser (1,8 m) pour toitures métalliques | Haute rétention de charge | Canada Snow Guards
$375.00 CAD
The Screw Down 6-Foot Double Bar Snow Guard System is a heavy-duty snow retention solution engineered for exposed-fastener metal roofs carrying high snow loads. Two continuous aluminum bars span 6 feet between screw-down brackets, creating a robust barrier that distributes snow and ice forces across the roof structure — protecting people, gutters, skylights, HVAC equipment, and landscaping below from dangerous roof avalanches.
Built for Canadian Snow Loads
Single-bar systems work on moderate loads. When you're dealing with heavy wet snow, ice dams, or steep pitches — or specifying retention above entrances, walkways, and high-value equipment — the dual-bar configuration provides the redundancy and load capacity serious Canadian installations demand. This system is the go-to specification for commercial facilities, multi-family housing, schools, and high-snow-zone residential projects across Ontario, Quebec, Alberta, BC, and the Atlantic provinces.
Dual Bar Redundancy
Two parallel aluminum bars catch and hold snow across a wider vertical profile, reducing slip-through and preventing ice chunks from launching between rails.
6-Foot Span Efficiency
6 ft bar lengths reduce bracket count, fastener penetrations, and install time versus shorter-span systems — without sacrificing holding power.
Engineered Load Ratings
Manufacturer load calculations available for your specific pitch, panel type, and ground snow load. Request an engineered layout before ordering.
Colour-Matched to Your Roof
Powder-coat finishes available to match common Canadian panel colours from Vicwest, Ideal Roofing, AGWAY Metals, and other major suppliers.
How the Screw-Down Double Bar System Works
The system uses screw-down brackets that fasten directly through the high rib of exposed-fastener metal roofing panels (such as AG Panel, PBR, R-Panel, and similar profiles) into the purlin or solid decking below. EPDM or butyl sealing washers maintain weather-tight penetrations. Each bracket accepts two horizontal bars — typically oriented to catch snow at two vertical planes, doubling the retention surface.
Bar splices and end caps complete the run. Brackets are spaced according to the engineered layout for your project — tighter spacing for higher snow loads, steeper pitches, or longer eave-to-ridge distances.
Important: Screw-down snow guards are designed for exposed-fastener metal roofs (through-fastened panels). For standing seam roofs, a non-penetrating clamp-on system is the correct specification to preserve panel warranties. View clamp-on systems for standing seam →
Technical Specifications
| Specification | Detail |
|---|---|
| System Type | Screw-down, double bar (2-rail) |
| Bar Length | 6 feet (1829 mm) per section |
| Compatible Roofs | Exposed-fastener metal panels (AG / PBR / R-Panel / Tuff-Rib / Ribbed profiles) |
| Bracket Material | Extruded aluminum |
| Bar Material | Extruded aluminum |
| Fasteners | Stainless steel screws with EPDM/butyl sealing washers |
| Finish Options | Mill, standard powder-coat colours, custom colour-match available |
| Installation | Fastened through panel rib into purlin or structural deck |
| Country of Distribution | Distributed Canada-wide from Paris, Ontario |
When to Specify the Double Bar (vs. Single Bar)
High Snow Load Zones
Ground snow loads above 2.0 kPa (roughly central Ontario north, most of Quebec, northern Alberta, BC interior) benefit from dual-bar redundancy.
Steep Pitches
Roof pitches 6:12 and steeper generate higher shear forces. The second bar reduces the risk of snow jumping a single rail.
Life-Safety Areas
Above entrances, loading docks, pedestrian walkways, and parking areas — anywhere a failure would endanger people or vehicles.
High-Value Equipment
Protecting rooftop HVAC, skylights, solar arrays, gutters, and downspouts from damaging slides.
Installation Overview
- Layout: Confirm bracket spacing per the engineered layout for your pitch, panel, and snow load.
- Fastening: Drive stainless fasteners through the panel rib into purlins or structural deck with sealing washers. Do not overdrive.
- Bar Installation: Thread the 6 ft bars through brackets, splice as needed, and install end caps.
- Inspection: Verify torque, alignment, and seal integrity before close-out. Document the installed configuration for warranty records.
Need an Engineered Layout?
Send us your roof plan, panel profile, pitch, and ground snow load. We'll work with you on the correct bracket count, spacing, and total bar footage so you order exactly what the project needs — no shortfalls, no leftover stock. Request a quote →
Contractor & Wholesale Pricing
Canada Snow Guards offers tiered pricing for roofing contractors, metal roofing suppliers, and spec-grade commercial projects. Wholesale accounts receive 20% off MSRP on qualifying orders. View wholesale program →
Frequently Asked Questions
Will this system work on a standing seam metal roof?
No. Screw-down systems are designed for exposed-fastener panels. Installing a screw-down system on standing seam voids most panel warranties and compromises the weather seal. For standing seam, use a non-penetrating clamp-on double bar system instead.
How do I know if I need a double bar system or a single bar will do?
Double bar is recommended when ground snow loads exceed 2.0 kPa, roof pitches are 6:12 or steeper, or the area below is life-safety critical (entries, walkways, vehicle zones). For moderate loads on low-slope roofs with non-critical areas below, a single bar may be sufficient. Send us your project details for a specification recommendation.
What's the bracket spacing?
Spacing is project-specific. It depends on snow load, roof pitch, panel profile, and eave-to-ridge length. Typical spacing ranges from 16" to 48" on-centre. Request an engineered layout for your project before ordering.
Can the bars be powder-coated to match my roof colour?
Yes. Standard powder-coat colours are stocked, and custom colour-match is available for most major Canadian panel manufacturer colours. Submit your panel colour code with your quote request.
Does this system carry any warranty?
Yes. The aluminum components carry a manufacturer warranty against material defects. Finish warranty varies by powder-coat option. Installation warranty is the responsibility of the installing contractor. Contact us for current warranty documentation.
Do you ship across Canada?
Yes. We ship from Paris, Ontario to all provinces. Freight quotes are provided at order confirmation based on quantity and destination.
Is this system CSA-certified?
Snow retention products in Canada are not governed by a CSA certification standard (unlike fall protection, which is governed by CSA Z259). Specification is typically based on manufacturer engineering calculations, ground snow load data (per NBC), and project-specific structural review. Engineered load calculations are available on request.