Wet Areas

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Wet Areas
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Definitions BCA Part 3.8.1
Wet Area an are within a building, supplied
with water from a water supply Includes
bathrooms, showers, laundries and sanitary
compartments. Does Not Include Kitchens, bar
area, kitchenettes or domestic food preparation
areas Water Resistant means the property of a
system or material that restricts moisture
movement and will not degrade under conditions of
moisture. Waterproof System Combination of
elements that are required to achieve a
waterproof barrier, may include membrane,
substrate, bond breakers, sealants etc
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Risk Potential For Wet AreasAS 3740

• High Risk Shower Recesses
• Medium Risk Rest of Bathroom Laundry
• Low Risk WC Room immediate area around a
  kitchen sink, bar or similar

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AS 3740 High Risk

• Means high probability of damage to structure if
  water within high risk area is not contained and
  discharged to drainage outlet.

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BCA Requirements High Risk Area
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BCA Requirements High Risk Area
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AS 3740 Medium Risk

• Accidental spillage must be contained to with in
  the room.
• It is imperative that water not be allowed to
  pass into concealed spaces or to adjoining rooms
• Drainage not neccessary

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BCA Requirements Medium Risk Area
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BCA Requirements Medium Risk Area
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AS 3740 Low Risk

• Risk of accidental spillage is low requirement to
  stop water traversing to adjoining rooms

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BCA Requirements Low Risk
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High Risk Area
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High Risk Area
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Preformed Shower Bases
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Preformed Shower Bases

• Must be fully supported
• Recessed Into Walls

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Preformed Shower Bases
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Bath Installation
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Bath Installation
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Definition

• Hob Upstand at the perimeter to a shower area

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Hob Requirements BCA
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Hob Construction Detail (Internal)
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Hob Construction Detail (External)