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Run: TPO Single Ply Roof Seam Inspection

TPO Single Ply Roof Seam Inspection template for checking seam width, heat weld quality, peel test results, and termination details on installed TPO roofing....

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Inspection Details

Project / roof area identified

Record the building, roof section, gridline, elevation, or area inspected.

Inspection date and time recorded critical (required)

Document when the seam inspection was performed.

Ambient conditions suitable for inspection critical (required)

Record whether temperature, moisture, and surface conditions were suitable for seam evaluation per manufacturer guidance.

Inspector name and company

Identify the inspector or competent person performing the inspection.

Seam Width and Overlap

Seam width measured within specification critical (required)

Measure the finished seam width at representative locations.

Overlap is consistent and continuous critical (required)

Confirm the membrane overlap is continuous with no open laps, fishmouths, or voids.

Yes No N/A

Photo evidence (optional)

Seam alignment is straight and properly lapped

Rate seam alignment and lap consistency along the inspected run.

No visible contamination at seam interface critical (required)

Check for dirt, moisture, adhesive residue, or other contamination that could compromise weld integrity.

Yes No N/A

Photo evidence (optional)

Heat Weld Quality

Weld bead is continuous and uniform critical (required)

Verify the weld bead is consistent along the seam with no skips, voids, or burn-through.

Yes No N/A

Photo evidence (optional)

Heat weld shows proper fusion without scorching critical (required)

Rate the weld appearance for proper fusion, edge seal, and absence of overheating damage.

No wrinkles, fishmouths, or bridging at seam critical (required)

Check for wrinkles, fishmouths, bridging, or other defects that can reduce seam performance.

Yes No N/A

Photo evidence (optional)

Hand probe or edge check confirms secure weld critical (required)

Verify the seam edge is secure and does not lift under a light probe where permitted by site procedure.

Yes No N/A

Peel Test Verification

Peel test performed at required locations critical (required)

Confirm peel testing was completed at the specified frequency and locations.

Yes No N/A

Photo evidence (optional)

Peel test result recorded critical (required)

Record the outcome of the peel test for the inspected seam segment.

Peel strength documented

Record measured peel strength or pull resistance where testing equipment is used.

Note (optional)

Failed test locations marked and isolated critical (required)

Verify failed areas are identified for repair, retest, and documentation.

Yes No N/A

Photo evidence (optional)

Termination and Edge Details

Termination bars or edge details are secure critical (required)

Check that terminations, bars, and edge securement are tight, continuous, and properly fastened.

Yes No N/A

Photo evidence (optional)

Sealant and flashing at terminations are intact critical (required)

Verify sealant, flashing, and cover details at terminations are intact with no gaps, voids, or splits.

Yes No N/A

Photo evidence (optional)

Penetrations and transitions adjacent to seam are properly detailed

Rate the condition of adjacent penetrations, corners, and transitions that affect seam performance.

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