FRM Non-Penetrating Roof MountsThe FRM is a non-penetrating roof mount and also a ballast roof mount offering 30'' to 60'' mast in sizes ranging from 1-1/4'' to 2-3/8'' OD. The base of the ballast roof mount is 34-3/4'' square with trays to fit the concrete blocks, for ballast mount. The FRM roof mount is hot dip galvanized for corrosion protection and goes together quickly. The ballast roof mount is easily shipped via features include:* No penetration on roof surface* Galvanized for corrosion protection* Designed for concrete block ballast mount* Goes together quickly* Minimum of bolted connections* Optional roof pads or mats are availableOrder (1) optional FRMMAT (1/8'' thick) or (1) optional FRMPAD (3/8'' thick) for a protective barrier between the mount and the roof. Order (1) optional SCK150 safety cable kit (3/8'' x 150').