Describe the existing assembly
Use records, safe observations, prior openings, and qualified investigation to identify known substrate, vapor or air control, insulation, cover board, membrane, attachment, surfacing, and drainage. Mark uncertainty. A core or probe requires authorization, safe access, and reliable restoration.
Compare the proposed layers
Request material and thickness for each layer, attachment method, seam method, wall and curb flashing, edges, drains, scuppers, penetrations, walk pads, and tie-ins. For recovery, ask for the documented suitability basis and how trapped moisture or unsuitable substrate is addressed.
Keep drainage central
Map slope, primary and overflow routes, ponding observations, drain bodies, strainers, leaders, and discharge. Ask whether insulation layout or new work changes elevations. Roofers can document conditions, while structural or drainage design may require other qualified parties.
Plan future access
Identify equipment service paths, roof hatches, fall-protection interfaces, solar or antenna areas, and maintenance routes. Keep repair coordinates and compatible-material information. A membrane warranty does not prevent damage from an undocumented later penetration.
Put the roof question into words
Have the property type, safe observation, date, and existing records ready. Ask the recipient to identify the company and confirm whether the address and roof concern fit its work.
Raleigh Roofing Comparison Desk is a roofing information and referral publisher, not the roofing contractor. A call may connect you with an independent provider or call service. Confirm the recipient, Raleigh coverage, service fit, credentials, insurance, availability, price, permit responsibility, and contract terms before authorizing work.