• Common problems you will find in roofing
systems
Fracture of a PVC flashing detail at a parapet wall
caused by tenting and careless window cleaning
workers
Spalling of concrete surface and purging on
an apartment building balcony overhang.
Blisters and ridges on conventional BUR
Rusted and corroded metal flashing at a roof
flashing detail
Wind blow off modified BUR caused improper roofing
applications and lack of asphalt between fireboard
overlay and original roof.
Wind blow off of modified BUR caused by improper
roofing applications and lack of asphalt between
fireboard overlay and original roof.
Plant growth on roof and an unballasted
PVC roof.
View of a roof with excessive snow loading.
Illustration of a poor wall flashing detail, note
exposed cant. Buildings were built at separate
times and were never properly tied together.
Improperly flashed EPDM roof drain detail.
Lack of horizontal support
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.
Hole caused by corrosion of steel deck.
Failure of structural steel deck due to snow
and ice impact.
Corroded steel deck and its subsequent
removal and replacement.
Failure of structural steel deck, caused by
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.
Oversized entry point for gas pipe.
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.
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 delaminating
of the insulation with the deck or vapour retarded or
shrinkage of the insulation.
Asphalt bleed out from a BUR roof.
This is a sign of ageing.
Bare and exposed felts caused by wind
scouring at corner of roof.
Substrate not properly prepared