What is a roof warning line system?

It is a portable line of posts and bright pennant flags that marks a safe boundary back from the edge of a flat roof, so workers know where the fall hazard starts. Instead of a permanent rail, you set the weighted posts around the perimeter and string the pennant line between them, creating a clear visual warning line. It is a standard way to keep crews a safe distance from an unprotected roof edge during work.

How does it stay put on a roof without drilling?

Weight, not anchors. The posts sit on heavy rubber bases, around 30 pounds each, so they hold the line in place on the roof surface without any holes or fasteners that would damage the membrane. You set them around the perimeter, run the pennant line, and pick it all up when the job is done. That keeps it reusable from job to job and safe for the roof itself.

What comes in a kit, and what size do I need?

The kits pair the warning line posts with their bases and a run of pennant flag line, sized to the perimeter you need to cover, like a 50 post kit for a big roof or a smaller set for a compact one, with over 100 feet of pennant line per roll. Measure the perimeter you have to mark, then pick the kit that covers it, or add posts, bases, and pennant line separately to build out an odd shaped roof.

Rooftop Grip-N-Go Orange 42 Inch Channelizer Warning Post

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Height

42"

Base

Black Recycled Rubber/Optional

Safety Standards

MUTCD & NCHRP-350

Choose Base

No Base 30 lbs

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Cortina Guardian 105 Feet Roof Perimeter Warning Vinyl Pennant

03-400-105

$27.03

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Product Details
Rooftop Grip-N-Go Orange 42 Inch Channelizer Warning Post - 03-765-VAR

Sturdy construction - Constructed from HDPE (high-density polyethylene material) for long-lasting durability.

Use the Cortina Safety Products Roof Edge Delineator on roof tops, construction sites, in parking lots, manufacturing plants, and office buildings. This simple to assemble Roof Warning Line Perimeter, with it's easy pennant flag tie off system, is easy to set up and remove quickly, and stores easily.

Features:
- OSHA 1926.502(f) Compliant
- Cortina EZ Grab Guardian high visibility orange
- Molded High Density Polyethylene with UV Color Stabilization
- OSHA Compliant Pennants - 500 lb tensile strength
- Guardian accepts warning light or sign
- Does not conduct
- Meets fall protection system requirements
- Easy BASE drop over assembly
- Stackable for storage
- 100% recycled rubber base

Specifications

FAQ

Frequently Asked Questions:

What is a roof warning line system?

It is a portable line of posts and bright pennant flags that marks a safe boundary back from the edge of a flat roof, so workers know where the fall hazard starts. Instead of a permanent rail, you set the weighted posts around the perimeter and string the pennant line between them, creating a clear visual warning line. It is a standard way to keep crews a safe distance from an unprotected roof edge during work.

How does it stay put on a roof without drilling?

Weight, not anchors. The posts sit on heavy rubber bases, around 30 pounds each, so they hold the line in place on the roof surface without any holes or fasteners that would damage the membrane. You set them around the perimeter, run the pennant line, and pick it all up when the job is done. That keeps it reusable from job to job and safe for the roof itself.

What comes in a kit, and what size do I need?

The kits pair the warning line posts with their bases and a run of pennant flag line, sized to the perimeter you need to cover, like a 50 post kit for a big roof or a smaller set for a compact one, with over 100 feet of pennant line per roll. Measure the perimeter you have to mark, then pick the kit that covers it, or add posts, bases, and pennant line separately to build out an odd shaped roof.
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Brand:	Cortina Safety Products Group
Product Type	Channelizer Warning Post
Height	42"
Base	Black Recycled Rubber/Optional
Color	Orange
Material	Polypropylene
Safety Standards	MUTCD & NCHRP-350
Weight:	3.00 lbs

Rooftop Grip-N-Go Orange 42 Inch Channelizer Warning Post

Rooftop Grip-N-Go Orange 42 Inch Channelizer Warning Post - 03-765-VAR