Roof Warning Line Systems
Roof warning line systems provide a visual boundary that helps workers maintain safe distances from roof edges during work at height. These systems are often used as an initial level of fall protection where guardrails or lifelines are not required.
Haven Fall Protection installs non-penetrating roof warning line systems and provides training to support proper use. Systems are selected and configured to meet OSHA requirements and suit the conditions of each roof.
OSHA Roof Line Warning Systems That Protect Your Crew
Designed for Safety. Engineered for Compliance
Flexline is a free-standing, non-penetrating system that uses heavy-duty recycled rubber base weights to hold the system in place. No drilling, no roof membrane damage, no special anchoring required. They deliver clear, unmistakable visual markers that your team can trust, so everyone always knows exactly where the fall hazard zones are.
Tough Enough for Real-World Conditions
Our roof line systems are made to endure all kinds of weather. Made from weather-resistant materials, they stand up to heavy use, fading, cracking, and low-visibility conditions.
Seamless Installation and Expert Training for Roof Line Fall Protection
We help select and install roof warning line systems suited to your site, ensuring proper setup from the start.
Flexline systems use a modular design with 10-, 15-, and 20-foot cable lengths that can be combined for longer runs as needed.
We also provide hands-on training so crews can safely install, remove, and reuse the system on future jobs. Training and installation are performed to support proper use and OSHA compliance.
Never Use a Temporary Visual Warning Line System on Its Own
Visual roof warning lines help clearly mark danger zones, but on their own, they won’t stop a fall. That’s why OSHA doesn’t consider visual markers alone to be a complete safety solution. To fully protect your crew, you need to pair visual awareness
with physical fall protection.
Pair Warning Lines with Fall Arrest or Restraint Systems
When crews are working near roof edges or open areas, a
horizontal lifeline system can provide the active protection needed to stop a fall in progress and keep the job moving safely.
Create Passive Protection with Guardrails
For jobs where regular rooftop access is required,
roof guardrails are a smart addition. They physically block hazardous areas, require minimal training, and work around the clock to prevent falls.
Start with a Professional Consultation
Not sure what systems you need? Our team offers fall protection consultations and on-site inspections to help you understand your risks, choose the right equipment, and stay OSHA-compliant across every jobsite.
We provide turnkey solutions that take the guesswork out of safety, from setup to training to long-term compliance.
Your Crew’s Safety, Backed by 30 Years of Expertise
Since 1998, we’ve helped hundreds of companies protect their crews with roof line warning systems, guardrails, and more.
Questions We Get About Roof Line Fall Protection Systems
Are your roof line systems suitable for sloped or low-slope roofs?
Yes! We offer systems designed for a variety of roof types, including both low-slope and sloped roofs. During your consultation, we’ll recommend the best setup for your specific job site and crew.
Can your systems be integrated with other safety equipment?
Absolutely. Our roof line systems work seamlessly with guardrails, anchors, harnesses, and more, giving you a complete fall protection solution that fits your workflow.
How do I know if my existing roof can support a fall protection system?
That’s where our site assessments come in. We’ll inspect your roof structure, spot any limitations, and help you choose safe, compliant options that work for your building.
Do you offer on-site consultations, custom designs, or fabrication?
We do all three. Every project starts with a walk-through of your site. From there, we design and fabricate OSHA-compliant roof line warning systems that fit your space, workflow, and safety goals. Need something custom? Our in-house fabrication team builds solutions tailored to your exact specs.
