These are the common and tell-tale signs of a failed waterproofing membrane:
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Water leaks that flow out from the hob of the shower
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Water marks on walls
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Signs of moisture and/or water damage to adjacent rooms or structures
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Smell of timber rotting
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Black mould growing on bathroom gyprock walls
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Ongoing water seepage through the grout
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The sound of water squelching when stepping on bathroom tiles
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In two storey properties internal cracking suggesting weight deflections and possible structural damage to beams and timber flooring beneath the tiled floor
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Evidence of “mudding” indicating termite activity. Mudding are small, tunnel-like structures that are made by subterranean termites. They're irregular in shape and made from wood matter, dirt, faeces and saliva must be installed correctly for a trouble-free and long-life bathroom renovation.
