What insurance is needed for tower work on rooftops versus freestanding towers?

Rooftop antenna installations create exposures that freestanding tower work does not. Key differences: (1) Building damage exposure: your work occurs on and within an occupied building. Roof penetrations for mounts, cable runs through the building, and equipment installation on the roof create property damage risk to the building itself and to other tenants' equipment. Your GL must cover damage to the building (premises you are working on), which some policies sublimit or exclude. (2) Building owner requirements: building owners/managers often have separate insurance requirements from tower carrier MSAs, potentially requiring higher limits, specific endorsement forms, or building-specific additional insured endorsements. You may need to satisfy both the carrier MSA and the building owner simultaneously. (3) Worker access: rooftop work involves working near unguarded roof edges, creating fall exposure similar to tower work but with different OSHA standards (Subpart M for construction, walking/working surfaces for maintenance). (4) Third-party exposure: dropped tools or materials from a rooftop in an urban area have high probability of striking pedestrians or vehicles. (5) Interior access creates theft and property damage exposure inside the building. Many specialty tower programs cover both rooftop and freestanding tower work seamlessly, but confirm your policy does not exclude or sublimit rooftop operations.