B the floor graded to the floor waste to permit drainage of water.
Bca bathroom floor waste.
If a floor waste gully is installed in a bathroom or laundry must the floor be graded to the gully.
In the above situations the floor is required by the ncc to be graded to the floor waste to prevent water overflow from penetrating to other occupancies or public spaces in the same building.
Nat 290kb this information sheets explains when a floor waste is required in a class 1 building based on the requirements of the bca and australian standards.
Bath basin shower discharge to a floor waste gully the floor waste acts as a fixture trap and provides a water seal between the fixtures and the sanitary plumbing.
Where the floor of a bathroom or laundry is located at any level above a sole occupancy unit or public space and the floor is required to be graded to the floor waste to permit drainage of water.
F1 11 provision of floor.
Where a number of fixtures e g.
Bathroom ventilation regulations according to the building code of australia bca there are a few bathroom ventilation aspects you need to be aware of.
In relation to class 1 buildings the key to when a floor waste is required is dependent on whether the shower area which is defined in the bca as the area affected by water from a shower including a shower over a bath is an enclosed shower area or unenclosed.
In a class 2 or 3 building or class 4 part of a building a bathroom or laundry located at any level above a sole occupancy unit or public space must have a a floor waste.
The installation of floor wastes in wet areas and grading to the floor waste.
Floor wastes in bathrooms when are they required.
From the guide to ncc 2016 eg applicable to class 2 3 or class 4 part.
However if your shower is unenclosed perhaps because it s over a bath or because it has one or more sides open then you ll need a floor waste in your bathroom.
Guide for builders on how to request a variation wa 198kb.
The bca does not directly cover a balcony or floor waste on a main bathroom floor but we all know balconies are constructed and floor wastes are installed in wet area bathroom laundry toilet and balcony floors to drain surface water into the designated floor waste to prevent water accumulating in the building and damaging building elements.