Rohn JRM23855 Non-Penetrating Mount

Non-Penetrating Roof Mount for Wireless and Telecom Equipment

The ROHN JRM23855 is a non-penetrating roof mount system that provides a stable platform for antennas, wireless equipment, and communication hardware without drilling into the roof. This model features a two-piece 10-foot mast with a 2.38" outer diameter and a heavy-duty base designed to be ballasted using standard 16" concrete blocks (not included). It’s ideal for installations where maintaining the roof’s structural integrity is critical, such as leased commercial spaces or sensitive membrane roofs.

Two-Piece Mast Design Simplifies Transport and Installation

Unlike single-piece mast systems, the JRM23855 includes a two-piece 10' mast that is easier to handle and transport to rooftop locations. Once assembled, the mast reaches a full height of 10 feet and offers 0.154" wall thickness for added strength. The mast is perfect for mounting point-to-point antennas, cellular repeaters, Wi-Fi access points, or security equipment that requires added elevation above nearby obstructions.

Sturdy Ballast Base Holds Strong in Harsh Conditions

The base of the JRM23855 is a 5-foot square steel frame designed to distribute weight evenly while accommodating up to 12 concrete ballast blocks. This approach delivers a strong, wind-resistant foundation without requiring any rooftop penetration. It’s a reliable solution for both permanent and temporary setups across broadband, PCS, and surveillance applications.

Protects Roof Membranes While Providing Long-Term Stability

By avoiding bolts, screws, or fasteners into the roof, the JRM23855 helps preserve existing warranties and prevent water intrusion. Its galvanized steel components provide weather resistance, while optional roof mats (sold separately) offer an additional protective barrier between the mount and roof surface, reducing friction and membrane wear during long-term deployment.

Ideal for Wireless, Cellular, and Broadcast Antenna Systems

This mount is widely used in the field for deploying wireless broadband links, mobile signal boosters, security cameras, and temporary event antennas. Its height, non-penetrating design, and two-piece mast make it a go-to option for technicians working on urban rooftops, industrial complexes, or remote site deployments that require structural flexibility and roof safety.

Optional Accessories Enhance Safety and Site Compatibility

Installers can pair the JRM23855 with ROHN’s JRMMAT roof mat for additional surface protection or the SCK150 safety cable kit for added security in high-wind zones. These accessories (sold separately) ensure the installation is not only stable but also compliant with safety standards in challenging environments. Refer to ROHN’s official guide for ballast requirements based on antenna size and regional wind conditions.

Ships Compact and Installs Easily with Standard Hardware

This unit ships with all necessary mast connection and frame assembly hardware included. Its modular design makes it easy to move through stairwells or elevators, and setup is quick once on the roof. With a lightweight frame and rugged construction, the JRM23855 is a practical choice for professionals needing fast, flexible rooftop antenna mounting.