Rohn 25GBRM 25G Ballast Roof Mount

Non-Penetrating Roof Mount for Rohn 25G Tower Sections
The Rohn 25GBRM is a heavy-duty ballast roof mount engineered to support one or two sections of Rohn 25G tower in a self-supporting configuration—without penetrating the roof. Designed for flat commercial or industrial rooftops, this structure allows installers to securely deploy vertical antenna systems while preserving the roof membrane. The mount is ideal for radio, wireless broadband, and temporary installations where permanent anchoring isn't allowed or desired.

Engineered for Structural Stability Without Roof Damage
This ballast mount distributes weight evenly and uses concrete blocks (not included) for counterbalance instead of anchor bolts. That means there’s no need to drill into roofing systems, making it perfect for leased buildings or locations where maintaining roof integrity is essential. The design keeps the tower upright and secure under static load conditions, while helping to minimize structural impact on the roof itself.

Compatible With Optional Mat and Pad for Roof Protection
To help protect the surface beneath the ballast frame, Rohn offers two optional accessories: the BRM6MAT (1/8" thick) and BRM6PAD (3/8" thick), which provide a cushioned barrier between the steel frame and roof material. These pads help reduce wear on roofing membranes over time and are highly recommended for long-term or heavy installations.

Hot-Dip Galvanized for Long-Term Durability
The entire mount is hot-dip galvanized after fabrication, ensuring it can withstand exposure to the elements in demanding rooftop environments. This finish resists rust, corrosion, and weather-related damage, making the 25GBRM suitable for both temporary and permanent outdoor rooftop deployments.

Supports a Wide Range of Antenna Mounting Applications
The Rohn 25GBRM is an excellent solution for broadcast antennas, Wi-Fi repeaters, cellular infrastructure, ham radio masts, and rooftop surveillance gear. When paired with compatible Rohn 25G tower sections, it forms a reliable freestanding system that is versatile, relocatable, and quick to deploy.

Optional Safety Kit Enhances Rooftop Security
For added safety, installers can also order the optional SCK150 Safety Cable Kit, which includes a 150-foot, 3/16" safety cable designed to secure the tower system or anchoring structure in high-wind scenarios or rooftop environments with unpredictable load dynamics. Safety gear is essential for compliance and peace of mind on commercial sites.

Designed for Use With Rohn 25G Tower Sections
Specifically engineered to match Rohn 25G tower geometry, the 25GBRM is the go-to rooftop mounting solution when using one or two standard tower sections. It offers simplicity in setup, structural reliability, and protection for the roof—all in a single, easy-to-integrate design.