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. WaterproofSystem – Combination of elements that are required to achieve a waterproof barrier, may include membrane, substrate, bond breakers, sealants etc
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
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.
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
AS 3740 – Low Risk • Risk of accidental spillage is low requirement to stop water traversing to adjoining rooms
Preformed Shower Bases • Must be fully supported • Recessed Into Walls
Definition • Hob – Upstand at the perimeter to a shower area