Filters Clear All Recent This aluminum rooftop access stair tower provides contractors safe and reliable access to rooftop HVAC and building systems. Showcasing the union of efficiency, versatility, and sustainability, this photo captures Upside Innovations’ installation of a modular aluminum stairwell and weather-resistant canopy for a temporary two-story office, featuring elements that are as easy to assemble as they are to reconfigure and designed to be compliant with ADA, IBC, and OSHA standards. This OSHA Stair Tower has been installed at the pictured warehouse in Kernersville, North Carolina for mezzanine access.