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● FORSPEC News · topic

Wet area waterproofing. Bathrooms, showers, laundries.

AS 3740 and the NCC wet-area rules: falls, walls, waterstops, flood tests and the mistakes inspectors find most.

5 stories so far

FORSPEC drawing of a shower flood test: test plug set inside the waste pipe below the puddle flange, water filled to the top of the waterstop, level mark on the wall

Flood testing: what the standards sayWet areas11 Nov 20262 min read

FORSPEC 3D drawing of a bathroom with the membrane shown on the shower walls, the floor, the bath surround and the wall and floor junctions

AS 3740: seven shower rules that get missedWet areas11 Nov 20262 min read

FORSPEC drawing of a bathroom floor section: substrate under the membrane falling 1:100 or more, finished shower floor falling 1:80 or more, finished floor between 1:80 and 1:50

1:100 or 1:80? The two fall rules in every bathroomWet areas11 Nov 20262 min read Shower walls: junctions, or the whole wall?Wet areas11 Nov 20261 min read A tile trim is not a waterstopWet areas11 Nov 20261 min read

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