Waterproofing Wet Areas - Bathroom Waterproofing
The Australian Standard - AS 3740—2004.
Waterproofing of wet areas within residential buildings.
Requirements are for;
Enclosed & hobbed shower recesses - the whole floor including the hob be waterproofed and leak control flange be fitted. The walls waterproofed to 150mm min.above the floor or 25mm min. above the maximum retained water level and the remainder to be water resistant to a height of 1800mm min. The wall junctions & joints - waterproof internal & external corners and vertical joints to a min. height of 1800mm above floor level with a min. width of 40mm either side of junction. All penetrations are to be sealed.
Areas outside the shower area for concrete - Entire floor to be water resistant and all floor to wall junctions to be waterproofed.
Laundries & Wcs - Entire floor to be water resistant and all floor to wall junctions to be waterproofed.
Waterproofing - membrane with reinforcing tape to wall junctions & joints. There are 3 classes of membranes and the class required will vary with type of recess and materials used.
Waterproof - Flexible Waterproofing Membrane with Reinforcing Tape in the junctions.
Water resistant - Acrylic Waterproofing Primer