NEW – ErectaStep’s non-penetrating rooftop stair solution

Introducing the Counterweight-Based
Stair & Crossover Solutions

Accessing rooftop equipment such as HVAC units, ductwork, or piping requires safe, compliant, and non-disruptive infrastructure. ErectaStep's counterweight-based rooftop stair and crossover system provides a secure, non-penetrating access solution that protects roof integrity while ensuring worker safety.

System Overview and Key Design Elements

This rooftop solution integrates ErectaStep's modular aluminum platforms and stair assemblies with a galvanized steel base equipped with integrated counterweight trays. The trays hold powder-coated steel weights and neoprene load-distribution strips, which stabilize the structure while preserving the roofing surface.

Counterweight vs. Tie-Down Systems

ErectaStep offers two distinct rooftop mounting solutions to meet varied structural and regulatory requirements: the counterweight-based system and the tie-down anchored system. Each method serves a specific application need, and understanding the differences can help facility managers and contractors choose the best option for their site conditions.

The counterweight system is a fully self-supporting solution that does not require any physical attachment to the roof. It relies on integrated galvanized trays loaded with powder-coated steel weights to provide mass and stability. This design is ideal for facilities with sensitive roofing materials, such as membrane or green roofs, where drilling or penetration could lead to leaks, warranty issues, or costly damage. Installation is faster and less invasive since it does not require structural anchoring, and the use of neoprene strips beneath the trays distributes weight evenly to prevent surface abrasion or deformation. Engineered to withstand wind speeds of up to 115 mph, this system provides secure and code-compliant access without permanent roof alterations.

In contrast, the tie-down system uses mechanical fasteners and rooftop shackles to anchor the stair and platform assemblies directly to the building structure. This approach may be preferred in locations where permanent anchoring is permitted or where existing tie-down infrastructure is already present. While this method can offer slightly higher rigidity in extreme conditions, it involves roof penetration, which may necessitate special permits, additional weatherproofing, and ongoing inspection to ensure long-term watertightness.

Choosing between these two mounting systems depends on site-specific variables such as roofing material, local building codes, exposure to wind loads, and installation constraints. The counterweight option provides greater flexibility and ease of deployment, particularly in retrofit or leased facilities, while the tie-down method is suitable for permanent installations where roof penetration is allowed.