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Common problems you will find in roofing systems

Roofing systems can encounter various issues that compromise their integrity and performance. Common problems include fractures in PVC flashing at parapet walls due to improper maintenance, spalling concrete surfaces, and blisters in built-up roofing (BUR). Rusty metal flashing and wind damage from inadequate application also pose threats. Plant growth on roofs, excessive snow loading, and poor drainage further exacerbate these concerns. Identifying these problems is crucial for effective remediation and extending the lifespan of roofing systems.

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Common problems you will find in roofing systems

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  1. Common problems you will find in roofing systems

  2. Fracture of a PVC flashing detail at a parapet wall caused by tenting and careless window cleaning workers

  3. Spalling of concrete surface and purging on an apartment building balcony overhang.

  4. Blisters and ridges on conventional BUR

  5. Rusted and corroded metal flashing at a roof flashing detail

  6. Wind blow off modified BUR caused improper roofing applications and lack of asphalt between fireboard overlay and original roof.

  7. Wind blow off of modified BUR caused by improper roofing applications and lack of asphalt between fireboard overlay and original roof.

  8. Plant growth on roof and an unballasted PVC roof.

  9. View of a roof with excessive snow loading.

  10. Illustration of a poor wall flashing detail, note exposed cant. Buildings were built at separate times and were never properly tied together.

  11. Improperly flashed EPDM roof drain detail.

  12. Lack of horizontal support

  13. Opening in flashing detail at scupper.

  14. View of non-insulated pipe and condensation that has occurred.

  15. Illustration of severe water ponding due to poor drainage.

  16. Oversized entry point for gas pipe.

  17. Typical longitudinal ridge. This type is caused by movement of the insulation substrate. This could be caused by delaminating of the insulation with the deck or vapour retarded or shrinkage of the insulation.

  18. Substrate not properly prepared

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