KATTGUARD® Warning Line Systems
Because falls are one of the most common construction workplace accidents, establishing a rooftop fall hazard warning line system ensures workers stay safe — starting from when they access the roof either by ladder or hatch.


Create a Permanent Roof Fall Hazard Warning Line
One way to protect workers is with warning line systems. These systems, which go around the rooftop work area, provide a clear signal that workers are nearing a hazardous or unprotected side or edge. Along with defining where unsafe rooftop areas are, these warning lines can also alert workers to spots where they can work without safety nets, harnesses or guardrails.
A warning line system needs to include a high-visibility material and have marks at 6-foot intervals. These features help workers clearly see the areas they need to keep a safe distance from.
Warning lines don’t provide any kind of physical restraint but rather serve as a visual reminder of unprotected rooftop areas. Therefore, they work best when they are part of a comprehensive fall protection system.
Provides High Visual Warning of a Fall Hazard
The KATTGUARD® permanent warning line system provides high visual warning of a fall hazard. The Aluminum posts are positioned every 15 to 30 feet and connected with plastic coated galvanized aircraft cable with aluminum danger pennants every 6 feet.
Why Choose a Customizable Roof Warning Line System?
When warning line systems are installed in hazardous areas on your rooftop, they will help keep workers safe. Because they use less material than other types of fall protection products, they are a cost-effective option. These systems are also built to last, helping you save money in the long term.
Purchasing a KATTGUARD® warning line system also means you can take advantage of our minimum lead time and easy delivery. Our trusted solutions help keep your business in compliance while educating you and your workers on the importance of rooftop safety.
KATTGUARD®
Permanent Warning Line System
- Can be customized on-site to meet the required application
- Can be combined with the KATTGUARD® guardrail systems to create an OSHA compliant rooftop environment.
- Meets OSHA 1926.502(f)(2)
- Galvanized steel bases withstand years of abuse
WL31
For metal decks and standing seam roofs, we offer an aluminum base that spans multiple roof profiles and can either be fastened down with self-sealing rivets or clamped with non-penetrating seam clamps. Both mounting types offer the same OSHA compliance and high visual awareness to ensure people are kept a safe distance from fall hazards.
WL32
Various mounting options are available to suit different roof types and profiles. Our KATTGUARD® freestanding warning line for membrane and built-up roofs features a galvanized steel weighted base that is completely non-penetrating and sits on top of the roofing membrane.
Keep Your Site Compliant With the KATTGUARD Warning Line System
The Occupational Safety and Health Administration (OSHA) regulates when and how warning line systems can be used. For example, OSHA details regulations regarding how to use these systems with low-sloped roofs and what products these warning line systems can be used alongside.
Here at FIXFAST USA, we understand the guidelines and have created a range of warning line systems built with these specifications in mind, allowing you to keep your job site compliant no matter which solution you choose.
Combined Efforts
KATTGUARD VISUAL can be combined with KATTGUARD guardrail to create an OSHA compliant roof safety system. Guardrails can be installed in high-traffic areas, access points and other fall hazard areas, and warning lines can be located in the low-traffic and low-risk areas to form a controlled access zone. With larger facilities, this combination can seriously reduce overall costs while still providing the required safety.
Experience Maximum Safety and Minimum Fuss With a Customizable Roof Warning Line System
Our rooftop fall hazard warning line systems keep your rooftop workers safe day in and day out. We make finding the right system simple with our responsive customer service team. If you have any questions, be sure to fill out our contact form, and we’ll be in touch with you soon.
Interested in receiving a quote on our warning line systems? Reach out today and we can help you get started.