01
Identify the whole system
Ask a lightning protection specialist to identify the existing air terminals, conductors, connections and grounding arrangement. A visible rod is only one component. Provide roof plans and planned changes to ridges, chimneys and equipment. The National Park Service treats inspection and maintenance as part of preserving these systems; appearance alone cannot establish that the installation still functions correctly.
02
Assign responsibility before access begins
List which contractor may detach or move components, where removed items will be held and who will reconnect them. Include temporary arrangements required by the specialist. An agreement that the roofer will simply put everything back leaves unanswered questions about damaged connections, obsolete components and responsibility for testing. Put those decisions into the project schedule and written scope.
03
Coordinate attachments with slate details
Have the slater and specialist review proposed mounting locations together. Show how attachments relate to ridges, flashings and future access, including areas being replaced. Request a detail where the system meets the roof instead of accepting an improvised screw through a finished surface. On historic buildings, discuss visibility and preservation requirements before components are ordered.
04
Close out both scopes together
Arrange the specialist's final inspection after roof work and other rooftop trades are finished. Keep the report, component information and photographs with the roof records. Record any remaining recommendations and who is responsible for them. Future service contractors should know that the conductors and fittings belong to a separate system and must not be casually relocated.