Prepare the roof history
Gather available roof plans, permits, repair records and current leak locations. Identify the building use, on-site contact, roof-access method, restricted work periods and rooftop equipment that must remain accessible.
Commercial roofing
Commercial roofing work must account for operations, rooftop equipment, drainage, tenant access and the connections between roof sections.
Durion evaluates leaks, seams, penetrations, flashing, drainage and transitions on commercial roofs, then develops a practical repair or replacement scope. Work can be coordinated with broader building repairs when water damage crosses into walls, framing or interiors.
Before scheduling, the building use, access constraints, known leak history and available roof records should be reviewed. This helps organize inspections and field work around the property's operations.
Roofing material reference

This illustration is a material reference, not a photograph of a completed DURION project.
Roof planning
Gather available roof plans, permits, repair records and current leak locations. Identify the building use, on-site contact, roof-access method, restricted work periods and rooftop equipment that must remain accessible.
Review each section by material and condition, especially where low-slope and sloped systems meet. Compare seams, penetrations, flashings, drains, scuppers, edges and equipment connections with the interior evidence.
The scope should identify affected sections, access arrangements, drainage and penetration details, permits and inspections, and how concealed conditions will be handled. If water reaches walls, framing or interiors, Durion can coordinate the broader building repair scope.
Next step
Send the address, building use, known leak areas and the best time to inspect without disrupting operations.