Non-Penetrating Rooftop Stair & Crossover Anchoring Systems
Counterweighted Bases Provide Stable, Code-Compliant Rooftop Access
Secure Rooftop Access Without Compromising Your Roof
SafeRack’s Non-Penetrating Rooftop Stair and Crossover Systems offer a secure, modular access solution for navigating obstacles like piping, ductwork, and HVAC equipment—without compromising the roof membrane. Ideal for warehouses, processing plants, and industrial facilities, these systems use weighted bases to anchor stairs and platforms in place, eliminating the need for structural attachment or rooftop penetration.
Pre-engineered to comply with OSHA and IBC standards, the system provides long-term durability and dependable rooftop access, even in environments where permanent mounting isn’t an option.
Rooftop Stair Anchor
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Counterweight vs. Tie-Down Systems
ErectaStep offers two rooftop mounting methods. Selection depends on roofing material, local codes, wind exposure, and whether roof penetration is permitted.
Counterweight system.
A fully self-supporting assembly with no mechanical attachment to the roof. Galvanized trays loaded with powder-coated steel weights provide stability, and neoprene strips distribute load and protect the surface. It is the preferred option for membrane, single-ply, and green roofs, and for leased or retrofit facilities where penetrations are restricted. Rated to 115 mph wind conditions. Installation is faster because no anchoring, flashing, or roof cutting is required.
Tie-down system.
Mechanical fasteners and rooftop shackles anchor the stair and platform assemblies directly to the building structure. This method suits permanent installations where penetrations are permitted or existing tie-down points are already in place. It requires flashing, weatherproofing, and ongoing inspection to maintain watertightness, and may require additional permits.
For most retrofit and warranty-sensitive rooftops, the counterweight system is the faster, lower-risk choice. For permanent installations with approved anchoring, the tie-down system offers a hard-anchored alternative. An ErectaStep product expert can review your site with your authorized distributor and recommend the right configuration.
System Overview and Key Design Elements
The rooftop non-penetrating stair base pairs ErectaStep’s modular aluminum stairs and platforms with a galvanized steel base and integrated counterweight trays. Powder-coated steel weights load into the trays, and neoprene strips beneath the base distribute load evenly and protect the roof surface.
- Non-penetrating support.
No fasteners into the roof membrane. Eliminates leak paths and warranty risk, and shortens installation. - Counterweighted stability.
Powder-coated steel weights and a widened footprint hold the system stable in wind conditions up to 115 mph. - Corrosion resistance.
Aluminum stairs and platforms with a galvanized steel base perform in harsh outdoor and coastal environments. - Slip-Resistant and OSHA-Compliant: All treads and platform surfaces meet OSHA standards for fall protection and traction, minimizing safety risks.
- Pre-engineered configurations.
3-, 4-, 5-, and 6-step single-platform crossovers ship from stock.
Ideal for Applications
Commercial
Rooftops
Facilities with no existing anchor points or where roof penetrations are not permitted.
Manufacturing and Processing Plants
Routine maintenance access to rooftop HVAC, exhaust, and utility equipment.
Warehouses and Distribution Centers
OSHA-compliant crossover access that protects roofing warranties on membrane and single-ply systems.
Counterweight Performance Specifications
| Steps | Total System Weight | Wind Shear Load | Wind Overturning Moment |
|---|---|---|---|
| 3 | 1,690 lb | 1,202 lb | 2,236 lb-ft |
| 4 | 1,828 lb | 1,432 lb | 3,226 lb-ft |
| 5 | 2,146 lb | 1,660 lb | 4,386 lb-ft |
| 6 | 2,454 lb | 1,889 lb | 5,716 lb-ft |
Static load capacity: 50 PSF on platforms; 1,000 lb on stairs.
Maximum roof height: 50 ft.
Wind rating: 115 mph.
Customers are responsible for verifying roof load capacity and suitability for friction-based support systems.
Rooftop Stair Installations
Resources & Specifications
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Frequently Asked Questions
The system uses engineered counterweighted bases that balance the structure and prevent tipping or shifting. Combined with non-slip pads and wide contact points, they provide exceptional stability without fasteners or roof penetration.
Yes. The non-penetrating design is suitable for most flat commercial and industrial roof types, including membrane, built-up, and coated systems. Neoprene pads protect the surface and help distribute weight evenly.
Absolutely. All configurations are pre-engineered to meet or exceed OSHA and IBC codes, including tread dimensions, platform width, and handrail requirements.
Yes. The modular design makes it easy to adjust, expand, or relocate sections as your facility needs change—without requiring new roof penetrations or structural changes.
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Rooftop Stair Anchor System
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What Customers Are Saying
I'm very pleased with the product and more importantly the service. Chris Hite was extremely responsive. He did an excellent job making sure that the gangway requested would meet our needs. We've found a new supplier and sales force that is willing and able to ensure our needs are met. I'm very pleased with the product and more importantly the service.
By Jason B. from SNF Flocryl
Second to none. Kenny Rogers was very responsive. I was very happy with the attention he gave to our order. SafeRack has a responsive crew working for them. Customer service was very accommodating. Sales was very professional, accommodating, quick to respond and knowledgeable about their product. Engineering was quick to respond to any changes we requested. Product quality, I would say, is second to none. We are very happy with the operation of the equipment. The lightweight design was the most attractive feature for us. The delivery of the majority of the order was either on time or delivered early. The product is very functional and easy to operate, these are the features that were most appealing to operations.
By Tim D. from Invista
Both salesmen have been on top of every question or concern. Both salesmen involved with this project have been on top of every question or concern I have had, and have provided timely responses. I was interested in purchasing a complete, turn-key installation. SafeRack was the only vendor that provided it.
By Sherman R. from Brenntag Specialties, Inc.
Went above and beyond. Linda Hardee couldn't be more helpful. Every question was answered promptly and accurately. Easy to work with. Product was delivered within two weeks of order. Sales department went above and beyond to get all the answers that were needed.
By Bill K. from The Press of Atlantic City
Excellent customer service, a plus in today's competitive marketplace. I received excellent customer service… a plus in today's competitive marketplace. Transloading sites must have some sort of containment; this is compact, lightweight, and easy to store for quick access when needed.
By Chuck I. from Eagle Rock Energy
Exactly what we needed. Product was exactly what we needed and price was lower than some other suppliers we looked at. Because of the purchase and use of this product, the safety of our employees will increase, the quality of our service to our customers will increase, and we will have less incidents resulting in greater equipment reliability.
By Phillip T. from Americas Styrenics