- Riser-Gard™ is a non-metallic flexible raceway for use in riser and general purpose applications. Riser-Gard™ is available with tape pre-installed. Riser-Gard™ is listed for Riser applications or optical fiber/telecommunication raceways. Riser-Gard™ is listed for riser, general purpose and other cabling optical fiber/telecommunication applications. Riser-Gard™ is suitable for use in vertical runs in shaft or between floors, as well as areas other than the plenum.