Rohn Non-Penetrating Flat Roof Mounts (FRM)

by Rohn

Non-penetrating antenna system designed especially for flat roof surface area installations. Secures with structural bricks or sand bags.
Rohn Non-Penetrating Flat Roof Mounts (FRM) has a rating of 5.0 stars based on 1 reviews.


Out of stock until July 31, 2023
This item is expected to be in stock in 51 days. Any orders placed now will be held until stock is available.

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Product Description

The Rohn, FRM series mount models are a non-penetrating roof mount and also a ballast roof mount. We offer Rohn's 60" mast with a 1.25" outer diameter (OD) (FRM125) and their FRM 30" mast with a 1.50" outer diameter (OD) (FRM150).

The base of the ballast roof mount is 36" square with trays to fit 16" nominal concrete blocks. We also offer optional Rohn 1/4” thick Anti-Skid Roof Pad (FRMPAD1) to provide a protective barrier between the FRM mount's base and the roof.

The FRM roof mount is hot dip galvanized for corrosion protection and assembles together quickly.


  • No penetration of roof surface
  • Galvanized for corrosion protection
  • Designed for concrete block ballast mount

FRM125 Dimensions:

  • 36" x 36" square base
  • 60" mast height
  • 1.25" Diameter Pipe

FRM150 Dimensions:

  • 36" x 36" square base
  • 30" mast height
  • 1.50" Diameter Pipe


Rohn warranties all of their products for 1 year against any workmanship or material defects that would make the product “unfit for its purpose”.

Read more about Rohn’s warranty policy within their Product Catalog here.



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