Roofing Problems Gallery

The following thumbnail photos illustrate common roofing problems. Click on the thumbnail for enlargement of the image. Contact us for more details.

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

: Improperly flashed EPDM roof drain detail.

: Lack of horizontal support for wood blocking.

: Opening in flashing detail at scupper.

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

: Roof of an unheated building in winter.

: Severe water ponding problem and blocked drain strainers.

: Deterioration and failure of coping stones.

: Damaged control joint

: Wet area detected by infrared camera outlined in yellow paint.

: Improper flashing repair at mechanical unit.

: Spalling of concrete surface and parging on an apartment building balcony overhang.

: Corroded steel deck and its subsequent removal and replacement.

: Hole caused by corrosion of steel deck.

: Failure of structural steel deck, caused by ice impact.

: Failure of structural steel deck due to snow and ice impact.

: Flashing problem at detail of metal roof.

: Flashing problem at detail of metal roof.

: Illustration of severe water ponding due to poor drainage.

: Incorrect nailing pattern on a shingle roof.

: Deflection of a wood deck in a shingled roof.

: Blisters and ridges on conventional BUR.

: Oversized entry point for gas pipe.

: Ice problem at edge of a shingled roof caused by poor ventilation.

: Excess build up of debris on a roof.

: Illustration of a hydraulic cement patch.

: View of a roof with debris.

: Improperly applied modified repair patch.

: Split in PVC curb flashing detail at non chamfered edge detail.

: Tenting of PVC membrane at parapet wall detail.

: Condensation and fungus growth found on the underside of a residential roof application caused by inadequate ventilation.

: Illustration of an improperly nailed shingle.

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

: Typical blister, note width of blister. Blister is usually a sign of moisture entrapment in the interply felt later.

: Typical longitudinal ridge. This type is caused by movement of the insulation substrate. This could be caused by delamination of the insulation with the deck or vapour retarder or shrinkage of the insulation.

: Asphalt bleed out from a BUR roof. This is a sign of aging.

: Bare and exposed felts caused by wind scouring at corner of roof.

: Wind blow off of modified BUR in Toronto caused by improper roofing applications and lack of asphalt between fibreboard overlay and original roof.

: Wind blow off of modified BUR in Toronto caused by improper roofing applications and lack of asphalt between fibreboard overlay and original roof.

: Plant growth on roof and an unballasted PVC roof.

: View of a roof in northern Ontario with excessive snow loading.

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