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.

Cortina Recycled Rectangular 30 lbs Black Rubber Base

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$34.50 $43.12 20% Off

Volume Pricing (quantity based)

1-99 Item	100-219 Items	220+ Items

$34.50	$33.47	$32.84

Size

30 in L x 14-1/2 in W x 3 in H

Base

Rectangular

Safety Standards

MUTCD & NCHRP-350

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Product Details
Cortina Recycled Rectangular 30 lbs Black Rubber Base - 03-752-30

Cortina 30 lbs recycled rubber base is for use with the Cortina Safety Products Roof Warning Line Perimeter Channelizer Warning Post. Use this Roof Warning Line Perimeter on rooftops, construction sites, in parking lots, manufacturing plants, and office buildings.100% recycled rectangular 30 lb rubber base is mark free and skid resistant. OSHA compliant.

Features:
- 100% Recycled Rubber
- OSHA 1926.502(f) Compliant
- Compatible with Series: Grip N Go
- 8 in Diameter Center Hole

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 Rubber Base
Size	30 in L x 14-1/2 in W x 3 in H
Base	Rectangular
Color	Black
Material	100% Recycled Rubber
Safety Standards	MUTCD & NCHRP-350
Weight:	30.00 lbs

Cortina Recycled Rectangular 30 lbs Black Rubber Base

Cortina Recycled Rectangular 30 lbs Black Rubber Base - 03-752-30