Rooftop Cell Site Installations
Rooftops make ideal cell sites in dense areas where a tower isn’t an option — but a roof was never built to carry cellular equipment, and it usually sits on top of an occupied building. That combination is what makes rooftop work tricky: it takes structural additions to support the equipment, careful penetrations that don’t compromise the roof, and RF work at height, all without disrupting the business underneath. FTCI turnkeys these builds with its own crews.
Rooftop installation is part of FTCI’s telecom site construction, and the same team handles the structural, electrical, and RF work a rooftop site demands. Keeping it in-house is what lets a tricky build stay clean, sealed, and on schedule.
Why Rooftop Builds Are Different
The roof wasn’t designed for the load. Cellular equipment, antennas, and their supports add weight and wind load a roof was never engineered to carry. Supporting them properly — without overstressing the structure or damaging the roof — is the first problem every rooftop build has to solve.
The building underneath stays in use. Unlike a greenfield site, a rooftop build happens on top of a live building with tenants, a roof warranty, and a business that can’t be disrupted. Every penetration, every access route, and every hour of work has to account for what’s below.
What a Rooftop Installation Involves
A rooftop build layers structural, weatherproofing, and RF work into a tight footprint. Handling each piece with one crew keeps the transitions clean — and keeps responsibility for the finished site in one place.
Structural Support And Platforms
Most rooftop equipment needs a support system that carries the load without harming the roof — steel platforms, frames, and FRP supports that spread weight and, where possible, avoid penetrating the membrane at all. FTCI builds and installs this structure directly, adding the platforms and supports a site needs rather than subbing the work out.
Roof Penetrations And Interior Routing
Where cable has to pass from the roof into the building, penetrations are cored and sealed, and conduit is run to the equipment space below. FTCI handles its own conduit bending, coring, and scanning — checking what’s inside a slab before cutting into it — for interior work that’s low-impact, clean, and safe in an occupied building.
Line, Antenna, And Testing
The RF side — running lines, mounting and aligning antennas, and testing the finished paths — is handled by the same crew on the same visit. Folding it into the rooftop scope means no waiting on a separate team to close out the site once the structure and cabling are in.
Protecting the Building During the Build
On a rooftop, the difference between a clean install and a callback is how carefully the building itself is protected. The practices that keep a rooftop site from becoming a problem for the property include:
- Supporting equipment loads without overstressing the roof structure
- Favoring non-penetrating or properly engineered mounts where the design allows
- Scanning slabs before coring to avoid rebar, conduit, and embedded hazards
- Weatherproofing every penetration to protect the roof and the space below
- Keeping interior work clean and contained to limit disruption to tenants
Get these right and a rooftop site is invisible to the people in the building beneath it — no leaks, no damage, no interruption. That’s the standard FTCI builds to: a site completed on the first try, sealed and safe, with nothing left for the property owner to chase down later.
