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3M Reflectivity Levels
In daylight, the three sheeting grades look nearly identical. At night, under headlights, the difference is dramatic. The photo above shows engineer grade on the left, high intensity prismatic in the center, and diamond grade on the right.
Which grade you need depends on the sign and where it's going:
Engineer Grade Prismatic (ASTM Type I)
Our lowest-cost option. Best for parking lots, private property, and low-speed areas.
High Intensity Prismatic (ASTM Type IV)
The most common choice for public roadway signs, and a significant step up in nighttime brightness.
Diamond Grade DG³ (ASTM Type XI)
The brightest sheeting 3M makes. Typically specified for high-speed roads, overhead and guide signs, and high-risk intersections.
If your sign is going on a public right-of-way, check your agency's specification — most call out an ASTM type or a 3M series number directly.
Detour Ahead Roll-Up Work Zone Sign
Note: Select your size and other options to view specific price.
Price range: $33.40 through $195.56
Detour Ahead Roll-Up Work Zone Sign guides drivers along a temporary detour route around a closure, work area, or unavailable roadway. Choose the available configuration that fits the installation and visibility requirements.
- Portable roll-up format for temporary field deployment
- Available sizes: 36" x 36" and 48" x 48"
The Detour Ahead Roll-Up Work Zone Sign guides drivers along a temporary detour route around a closure, work area, or unavailable roadway.
Available sizes include 36" x 36" and 48" x 48". Roll-up material choices include Orange Mesh, Orange Non-Reflective Vinyl, Orange Retro-Reflective, Orange Diamond Grade Reflective, and additional options.
Temporary traffic control is addressed in Part 6 of the MUTCD 11th Edition. Work-zone sign use should follow the traffic-control plan, site conditions, and the authority responsible for the work.
Complete the temporary setup with compatible ribs and a roll-up sign stand selected for the sign size and field conditions.
Hardware, Posts & Brackets
Shopping Cart
Manual on Uniform
Traffic Control Devices
Download or Search MUTCD Manual
Outsmart the Dark with 3M Diamond Grade DG3 Reflective Sheeting
Using science to turn black spots into bright spots. Black spots are places where the number of crashes is higher than average. Often the reason for black spots is the physical configuration of the road or intersection, such as:
• Sharp corners in a straight road, concealing oncoming traffic
• Hills or winding roads that limit visibility ahead
• Hidden junctions and intersections
• Poor or concealed warning signs
1 review for Detour Ahead Roll-Up Work Zone Sign
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Stan Worth –
Great price!