Defect Category
Roofing Defects
Technical guidance covering roof leaks, box gutter failure, flashing defects, poor drainage falls and overflow issues commonly found on Class 2 building roofs and podium decks.
Roof Leaks
Water penetration through the roof covering, membrane or junction details causing damage to the building below.
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Box Gutter Failure
Deterioration or blockage of concealed box gutters causing overflow, water ingress and structural damage.
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Flashing Failures
Failure of roof flashings at ridges, hips, valleys, penetrations and abutments allowing water ingress.
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Poor Falls & Ponding
Inadequate roof drainage falls causing water ponding, accelerated membrane degradation and structural loading.
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Overflow Issues
Inadequate or blocked overflow provision causing water to back up and breach the building envelope during heavy rain.
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