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Common problems you will find in roofing systems

This guide highlights common issues found in roofing systems, including fractures in PVC flashing details at parapet walls, spalling concrete on balconies, blisters on BUR roofs, and rusted metal flashings. It explores problems caused by improper roofing applications, such as wind blow-offs and plant growth on roofs, poor drainage leading to water ponding, and inadequate insulation support. Understanding these issues can prevent costly repairs and ensure a long-lasting roofing system. Learn how to identify and rectify these common roofing faults effectively.

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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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