6. Water Features

6.1 Water-features may be located in a flyer, in a hotel room, or externally

6.2 Water features are typically constructed without a sprayed shell – and use a structural shell with a UV stabilised waterproofing membrane.

6.3 Water features must be less than 300mm deep (always refer current legislation) to be “unfenced”. Deeper water features must be fenced or have a false stainless steel floor or stones in the feature at less to prevent the water feature being 300mm or greater in water depth.

6.4 Protect the membrane where possible with smooth pebbles or the like.

6.5 Ensure there is an OVERFLOW in the water feature - a stormwater pipe feeding to outside the building (not a sealed downpipe system – we don’t want water coming back up a surcharging stormwater line to follow the overflow back into the building!)

6.6 External water-features need to have an overflow rated at Q100 rain loads, and internal water-features are enough to cater for the volume of water expected form a top up system (holes, or automatic valve).

6.7 Overflows are usually set 50mm below the top of the water feature, or level in the case of a wet edge type trough - 50mm up from the base of the trough.

Above - External water-feature with freeboard waterline and internal overflow

Above - Internal overflow with wet edge trough and built in overflo