- Provides easy roof or mezzanine access - Available 60° and 75° standard angles. Other angles and custom designs are available upon request. Provides easy ladder-to-roof access to a flat or low parapet roof - Lightweight and maintenance-free aluminum construction - Non-spark, high strength 6061-T6 alloy rungs and 6063-T5 alloy extrusions - Standard floor mounted bracket included. Options for seismic bracket also available - Comes with standard mill finish but can be anodized or powder coated to any color or finish specified for an additional cost