Industrial Roof Leakages

Industrial Roof Leakages

Accessibility
Positive side accessible
Application Method Summary

Retorque/replace fasteners; clean laps. Local banding with PU/polyurea + geotextile or butyl bands. Full‑area: spray PU/Polyurea or TPO overlay with wind‑uplift design. Post‑cure water test and adhesion pulls.

Leakage ID

LQ-INDUSTRIAL-ROOF

Likely root causes
Poor detailingPlumbing penetrationUV degradation
Location
Roof
Next Steps

Understand the stress points, treat them with right termination coatings and cover the deck with right waterproofing membrane that has a UV resistance and high puncture resistance

QC/Tests

1. Termination Detailings, 2. Membrane UV Resistance, 3. High Puncture Resistance

Recommended Technology Tags
PU MembranePolyureaTPO
Recommended technologies
Polyurethane MembranesPolyurea MembranesTPO Membranes
Reference Image
Related applications
09. Roof Deck/ Metal Decks
Segment
Roofs
Select
Top
Severity
High
Solution Type
Sealant repairPositive-side waterproofing
Specific Area / Component

Top Tech Picks

Summary

Industrial roofs (metal/PEB) leak chiefly at fasteners, sheet overlaps, skylight terminations, wall/roof junctions, and penetrations. Movement, vibration, and UV drive failures.

Symptoms

  • Drips at fasteners during rains
  • Wet streaks along side laps/end laps (capillary action)
  • Leaks at skylight edges or around penetrations

Probable causes

  • Aged/embrittled sealants and tapes
  • Improperly torqued fasteners or degraded washers
  • Poor skylight termination detailing; negative slope at laps

Solution paths

  • Positive-side repairs on roof with high‑movement sealants and bands
  • Local reinforcement with PU/polyurea banding at skylights and junctions
  • Full‑area re‑waterproofing for aged roofs (spray PU/polyurea or TPO overlay where suitable)

Recommended technologies

  • Polyurea or spray PU (trafficable, fast cure) over primed metal
  • TPO overlay (mechanically fixed) where system is compatible and wind‑uplift design is done
  • High‑movement silicone/PU hybrid sealants; butyl tapes at laps

Quick SOP

1) Inspect and retorque/replace fasteners & washers; clean and abrade laps.

2) Apply primer; band side/end laps and penetrations with liquid membrane + geotextile or butyl bands.

3) For full‑area: spray PU/polyurea to spec DFT with UV topcoat; or install TPO per wind‑uplift design.

QA / acceptance

  • Water test after cure; adhesion pull-off on representative areas; fastener torque log

Cross-links

5. Video Masterclass

SpecX Masterclass: Industrial Roof Leakages Solutions — Coming Soon

Disclaimer

SpecX is an industry initiative & a neutral resource, compiled from industry references and best practices. It is not brand-specific. Always cross-check with project requirements and local codes before finalizing specifications.

  • Applications: Roof Deck (metal), Terraces
  • Technologies: Polyurea, PU Membranes, TPO