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.