Roofing Built-Up Membrane Inspection

Inspection template for evaluating built-up roofing membranes, including ply count, adhesive condition, flashings, seams, drainage, and signs of ponding or deterioration.

Inspection Details

• Roof identification recorded
  Record building name, roof area, section, or grid location inspected.
• Inspection date and time captured
  Document when the inspection was performed.
• Weather conditions documented
  Record current weather and any recent precipitation, wind, or freeze-thaw conditions relevant to roof condition.
• Inspection scope confirmed
  Select the areas included in this inspection.
• Safe access and fall protection in place
  Verify roof access, fall protection, and site controls were in place before inspection began.

Membrane Construction

• Observed ply count matches expected assembly
  Count visible plies or verify documented assembly against design or repair records.
• Surfacing and reinforcement condition acceptable
  Assess whether surfacing, reinforcement, and embedded materials show normal wear or visible breakdown.
• Adhesive or bitumen condition acceptable
  Evaluate adhesion, mastic, or bitumen for cracking, voids, dry-out, blistering, or loss of bond.
• Blisters, splits, or alligatoring observed
  Check for blistering, splitting, alligatoring, or other membrane surface deterioration.
• Previous repairs remain secure
  Verify patches, overlays, and prior repairs are intact, bonded, and not separating at edges.

Flashings, Seams, and Penetrations

• Base flashings are intact and properly terminated
  Inspect parapet, curb, wall, and edge flashings for secure termination, adhesion, and absence of gaps.
• Seams are sealed and continuous
  Check seams for open laps, fishmouths, voids, splits, or loss of seal.
• Penetration flashings are watertight
  Inspect vents, pipes, drains, equipment supports, and other penetrations for cracking, separation, or exposed substrate.
• Counterflashing and termination details secure
  Verify metal counterflashing, termination bars, reglets, and fasteners are secure and free of corrosion or displacement.

Drainage and Ponding

• Primary drains are clear and functional
  Check that drains are unobstructed by debris, sediment, or membrane blockage and appear capable of carrying water off the roof.
• Scuppers, gutters, and downspouts are unobstructed
  Inspect secondary drainage paths for blockage, damage, or signs of overflow.
• Visible ponding present
  Estimate the extent of standing water or persistent ponding observed during inspection.
• Drainage slope appears adequate
  Assess whether roof slope and low spots appear to support positive drainage away from the membrane surface.

Deterioration and Final Assessment

• Signs of deterioration observed
  Select all visible deterioration conditions present on the roof membrane.
• Leak evidence present
  Check for interior staining, active leaks, wet insulation indicators, or moisture-related damage associated with the roof area.
• Overall roof condition rating
  Provide an overall condition assessment based on membrane, flashings, seams, drainage, and deterioration findings.
• Corrective actions documented
  Record recommended repairs, urgency, and any follow-up inspection needs.