What a replacement includes
A replacement can include removal of existing roofing, evaluation of the exposed deck, insulation work, a new roof covering and new connections at walls, edges, drains and equipment. The inspection and design establish which components need attention.
Concealed deck or insulation conditions may not be fully known until the roof is opened. The proposal should distinguish the planned work from additional repairs and explain how those findings will be documented and approved.
Choose a system for the building
Commercial options include TPO, PVC, modified bitumen and metal roofing. The appropriate system depends on the roof configuration, supporting structure, drainage, equipment and use of the building.
Compare the complete assembly, including insulation, attachment and flashing. If leaving existing materials in place is proposed as a recover option, the assessment should explain why those materials are suitable and what remains concealed.
Keep the property usable during work
An occupied property needs a plan for roof work areas, material deliveries, lifting, waste removal and daily weather protection. Coordinate the sequence with tenant access, loading areas and spaces where water or noise would interrupt operations.
Rooftop equipment may require other trades. Agree on those responsibilities and retain the final roof information, completed-work record, applicable inspections and written warranties.
What to compare in a written proposal
- Removal or recover approach and roof areas included
- Deck, insulation and drainage work
- Roof system, attachment, edges and equipment flashing
- Work phases, property protection and completion records
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Roof damage and repair-scope options
Explore these construction planning topics when they match the decision you need to make.