Renovate Robotics has built and deployed an autonomous cable-driven robot that installs asphalt shingles at three times the speed of a human worker — and is already completing real residential roofing jobs in New Jersey and Pennsylvania.
Residential roofing is a $60 billion industry in the United States, and by almost every measure it is one of the more punishing trades to work in. According to the Bureau of Labor Statistics, roofing carried the second-highest fatality rate of any occupation in the country in 2022. Skilled labor is chronically in short supply. And with over 80 million single-family homes across the US and more than a million new homes built each year — most roofs needing replacement every 20 to 30 years — the volume of work shows no sign of shrinking. A Brooklyn-based startup called Renovate Robotics thinks automation is the answer, and its robot, Rufus, is already working on real rooftops.
A robot built for the most dangerous job on site
Founded in 2021 and originally based in Seattle before relocating to the Brooklyn Navy Yard, Renovate Robotics introduced Rufus in early 2024 at the International Roofing Exhibition. The robot is designed specifically for asphalt shingle installation on steep-slope residential roofs — the most labor-intensive and time-consuming portion of a standard roof replacement job. According to the company, Rufus installs shingles at roughly three times the rate of a human roofer, while simultaneously reducing the labor headcount needed on a crew. The company’s stated goal is to double crew productivity without requiring contractors to hire additional workers, directly improving the unit economics of each job.
How the robot actually works
The machine operates using a winch-based cable-driven system. It attaches to the roof and moves across the surface in a gantry-like X and Y axis pattern, placing and fastening shingles as it travels. Computer vision guides precise shingle placement, and the modular design allows the system to adapt to different roof shapes and sizes. The robot was engineered to navigate around roof plane transitions and features — capabilities that CEO and founder Andy Stulc highlighted as already functional in early demonstrations. “Rufus can already navigate around roof planes and automatically install shingles using AI — but this is just the beginning,” Stulc said. “We have an exciting roadmap ahead of us, and are excited to continue launching products that bring value to all parts of the roofing industry.”
Beyond shingles: The road to solar
Shingle installation is only the starting point. Renovate’s product roadmap includes automated shingle tear-off, shingle cutting, and bracket installation for rack-and-panel solar systems — a capability that would make the robot directly relevant to the fast-growing residential solar market. Automated solar shingle installation is also on the company’s longer-term development list. The modular architecture of Rufus was designed with exactly this kind of expansion in mind, allowing new functional modules to be added as the technology matures.
The business model: Start as a subcontractor, scale as a service
The company’s commercial strategy reflects the realities of bringing hardware to a fragmented, contractor-dominated market. In the near term, Renovate is operating as a subcontractor, pairing its technology with partner roofing contractors to complete residential re-roof projects rather than selling or leasing machines outright. This lets the team iterate rapidly based on real job-site feedback. The longer-term plan is to transition to a robotics-as-a-service (RaaS) model, leasing machines directly to roofing contractors who want to integrate the technology into their own crews.
Who it is designed for
Rufus is aimed squarely at roofing contractors rather than homeowners — it is a tool for the trade, not a consumer product. The immediate target is residential re-roofing, which accounts for roughly 80 percent of the approximately 4.5 million roofs installed across the US each year. The system is built for steep-slope asphalt shingle roofs, which represent the dominant residential roofing type in North America. Contractors with existing crews stand to benefit most directly, as the robot is designed to work alongside human workers rather than replace them entirely — handling the repetitive shingle-laying while the crew manages setup, flashing, and finishing work.
Practical limitations
The robot is currently optimised for asphalt shingle installation on steep-slope residential roofs — flat roofs, tile, metal, and other roofing types are outside its current scope. The winch-based cable system requires anchor points at the roof ridge, which adds setup time at the start of each job. Early field installations have highlighted, in the company’s own words, that “not everything goes perfectly, especially in the early days” — an honest acknowledgement that the technology is still being refined through real-world deployment.
The system also currently requires a ground team to operate it, meaning it reduces rather than eliminates the need for workers. Full autonomy from setup to completion is a longer-term goal rather than a current capability.
Partners, backers, and availability
Industry partners are already on board. Renovate has secured a partnership with CertainTeed, the roofing division of Saint-Gobain, under which it works alongside contractors within CertainTeed’s credentialed network. The company has also attracted backing from investors including SOSV, New Stack Ventures, Grit Capital, and Uphonest Capital. Robotic roofing installation is currently available to homeowners in New Jersey and Pennsylvania, with the company operating under registered home improvement contractor licences in both states.
Conclusion
Renovate Robotics is addressing a genuine structural problem in the US roofing industry — one defined by dangerous working conditions, persistent labor shortages, and a market large enough to sustain meaningful automation investment. Rufus does not yet replace a roofing crew, but it does change what a crew of a given size can accomplish in a day, which is a practical and commercially viable starting point.
The technology is still early. Real-world deployments are limited to two states, the robot handles one task type, and the full robotics-as-a-service business model remains a future ambition rather than a current offering. But the combination of a validated working prototype, a major materials partner in CertainTeed, and an industry with both a clear labor problem and a $60 billion annual revenue base gives the company a credible foundation to build from.
Source: Renovate Robotics
