Rohn JRM23805 Non-Penetrating Mount

Non-Penetrating Roof Mount for Antenna and Wireless Equipment
The ROHN JRM23805 is a non-penetrating roof mount designed to support antennas, wireless gear, broadband hardware, or similar equipment without drilling into the roof surface. Featuring a sturdy 5-foot square base and a 5-foot mast with a 2.38" outer diameter, this mount uses ballast blocks to hold its position securely in place. It's an ideal solution for temporary or permanent installations where preserving the roof membrane is a priority.

Protects Roof Integrity by Avoiding Drilling or Fastening
This mounting system eliminates the need to bolt through roofing materials, helping to maintain the water-tight seal and structural integrity of commercial or residential flat roofs. By relying on ballast weight—typically 16" nominal concrete blocks (not included)—the JRM23805 delivers strong, stable support while preventing potential leaks or warranty issues from penetrations.

Sturdy 5-Foot Square Base for Maximum Stability
The heavy-duty steel frame provides a 5' x 5' square footprint that distributes load evenly and supports vertical mast loads under various weather conditions. Whether you’re deploying a small cell system, wireless access point, satellite dish, or surveillance antenna, this mount’s broad base gives it the grip needed to withstand wind and vibration without shifting or tipping.

Includes 2-3/8" OD Mast with Reinforced Wall Thickness
The included mast measures 2.38 inches in outer diameter, stands 5 feet tall, and features a 0.154" wall thickness—perfect for mounting medium to heavy antennas and pole-mounted equipment. The mast is secured to the base frame and offers compatibility with a wide range of brackets and clamps used in telecom, PCS, and broadband installations.

Ideal for Telecom, Surveillance, and Broadcast Installations
Engineers and installers rely on the JRM23805 in a variety of applications, including cellular deployment, broadband access, security system mounting, and temporary broadcast setups. It’s a practical choice for urban rooftops, temporary events, or situations where roof penetrations are not allowed or desired.

Optional Accessories Available for Enhanced Safety
While the core system includes the base and mast, ROHN offers several optional accessories (sold separately) to complete your installation. These include the JRMMAT protective roof mat to minimize friction and protect roofing material, and the SCK150 Safety Cable Kit for added security in windy environments. Be sure to reference ROHN’s Roof Mount Guide for proper ballast requirements based on antenna type and wind zones.

Engineered for Longevity and Outdoor Performance
The steel construction and galvanized finish provide corrosion resistance and ensure that the JRM23805 withstands harsh outdoor conditions over the long term. Whether used for permanent mounting or short-term deployments, this mount delivers reliable support with minimal maintenance requirements.