Installing heavy rooftop equipment—such as HVAC units, generators, air handlers, or other mechanical systems—often requires a crane pick. While a crane makes it possible to place equipment precisely on a new commercial roof, the lifting operation can create significant risks for the roofing system. A new roof can be vulnerable to punctures, membrane damage, compression, impact, and excessive loading if the crane pick is not carefully planned.
At Shieldline Roofing, protecting the roof during a crane pick starts before the crane arrives. The goal is to create a controlled path for the equipment while preventing the crane operation from damaging the newly installed roofing system.
Plan the Crane Pick Before Work Begins
The first step is coordinating the crane pick between the roofing contractor, crane operator, general contractor, and mechanical contractor. The team should identify where the crane will be positioned, the equipment’s weight, the landing location, the travel path, and where workers will need to access the roof.
OSHA emphasizes that crane operations should involve qualified personnel, proper crane setup, inspected rigging, appropriate load charts, and a planned lift path. Suspended loads should also be kept away from workers whenever possible.
For a newly installed roof, this planning also determines where temporary protection will be needed.
Use Protective Materials Over the Roofing System
A crane pick should never be treated as an ordinary rooftop delivery. Even when the suspended equipment itself does not directly contact the roof, workers, rigging, tools, and equipment can create concentrated loads during the landing process.
Roof protection may include heavy-duty protection boards, plywood or other approved temporary protection systems, walk pads, and reinforced pathways. The exact materials should be selected according to the roofing manufacturer’s requirements and the expected loads.
Protection should extend beyond the exact landing point. Workers need a safe, protected route for moving and positioning equipment, while rigging operations may require additional space around the landing area.
Protect Against Impact and Punctures
One of the biggest concerns during a crane pick is accidental impact. A swinging load or dropped rigging component can puncture a membrane or damage insulation beneath it.
Protection boards can help distribute localized loads and provide a sacrificial layer between construction activity and the finished roofing system. However, temporary protection is not a substitute for proper rigging and controlled lifting.
The crane operator and rigging team should raise the load gradually, confirm its balance and stability, and follow the approved lift plan. OSHA specifically recommends raising a load a few inches initially to verify capacity and balance before proceeding with the lift.
Consider Structural Loading
Roof protection is not only about preventing visible membrane damage. A new roof may also be affected by concentrated loads from equipment, carts, staging materials, or temporary supports.
Before placing heavy equipment or temporary supports on a roof, the responsible project team should verify that the roof structure can safely support the imposed loads. The roofing contractor can help identify areas where additional protection is necessary, but structural capacity should be evaluated by the appropriate qualified professional.
Keep Workers Safe During the Pick
Protecting the roof and protecting workers go together. OSHA considers hoisting, storage, application, and removal of roofing materials and equipment part of roofing work.
Workers on the roof must have appropriate fall protection, and areas below the suspended load should be controlled. OSHA guidance also emphasizes that workers should not be positioned beneath suspended loads and that crane swing areas should be appropriately controlled.
Weather matters as well. High winds can make suspended equipment difficult to control and can increase the possibility of accidental contact with the roof.
Inspect the Roof After the Crane Pick
Once the equipment has been set, the roofing contractor should inspect the affected areas. Look for punctures, membrane cuts, displaced protection materials, damaged flashing, crushed insulation, or other signs of impact.
If damage is discovered, it should be addressed promptly rather than allowing a small defect to become a roof leak.
Protect Your New Commercial Roof During Equipment Installation
A crane pick does not have to damage a new roof. Proper planning, temporary protection, controlled rigging, safe worker access, load management, and a post-pick roof inspection can significantly reduce the risk.
For commercial property owners and facility managers, coordinating the crane pick with the roofing contractor before the lift is one of the simplest ways to protect a new roofing investment. Shieldline Roofing can help coordinate roof protection requirements for commercial construction and rooftop equipment installations throughout Florida.
Related Questions
- How is a new roof protected while other trades finish the building?
- What crane and hoisting safety requirements apply to roofing jobs?
- How should HVAC replacement be coordinated with roof replacement?
- What are the rules for material hoisting near overhead power lines?
- Which should come first: the new roof or the new rooftop units?
- How do you prevent damage from window washing and facade crews?
Commercial Roof Repair in Florida
