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Waterproof decks – water leaking into the house

  • The threshold from the house down to the waterproof deck or balcony is not deep enough

    How to repair

  • The deck membrane is not turned up enough (150 mm minimum) behind the bottom of wall and solid barrier cladding 

    How to repair

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Waterproof decks – the deck is springy

  • There is damage to the substrate and/or framing due to water entry through the membrane or through adjacent wall claddings 

    How to repair

  • The substrate material is not thick enough to span the rafters/joists

    How to repair

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Waterproof decks – membrane turn-ups improperly installed

  • Poor detailing and/or installation to membrane turn-ups at walls and doors (potentially allowing water entry)

    How to repair

  • The waterproofing membrane was applied/laid after the cladding was installed

    How to repair

Waterproof decks – delamination of membrane from substrate

  • Poor adhesion of the membrane to the substrate

    How to repair

  • For liquid applied membranes, the application had not cured properly before subsequent coats were applied

    How to repair

Waterproof decks – membrane surface buckling and cracking

Sheet membrane roofing – dirt on membrane roof

Sheet membrane roofing – deterioration along substrate joints

Sheet membrane roofing – impact or puncture damage

Sheet membrane roofing – surface deterioration (cracking, crazing)

  • UV light degradation

    How to repair

  • Expansion/contraction of substrate resulting in over-stressing and failure of the membrane

    How to repair

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Sheet membrane roofing springy or spongy to walk on

  • Damage to the substrate and/or framing due to water entry through the membrane or through adjacent wall claddings 

    How to repair

  • The substrate material is not thick enough to span rafters/joists

    How to repair

  • View all repairs

Water ponding on sheet membrane roofing