Sub Floor Ventilation Spacing

Vent type l vent size l area per square mm.

Sub floor ventilation spacing.

Aleta 230mm x. It also enables a person to climb in and inspect the area for termites fungal decay and other building problems. Many traditional properties are built with a suspended wooden floor which sits above a void air space between the perimeter walls and ground if this space is not ventilated the air in it becomes stagnant and humid and the moisture within it begins to condense on the brickwork and flooring. If the ground under the subfloor space is dry and there is no evidence of moisture there is no need to increase the amount of ventilation.

The space under a suspended timber framed floor must be ventilated. Openings should be provided within 750 mm of. Of the australian standards a s. Squared nett ventilation per lineal metre on both external and internal walls.

A minimum of five air changes per hour should be provided and double that for wet subfloor spaces. Inspect the subfloor space to ensure that the water is not coming from leaking pipes wastes or drains. Subfloor ventilation is cross ventilation of the subfloor space between the underside of the subfloor and the ground surface under a building. 3600 specifies that the minimum requirement for sub floor ventilation should be one 1 ventilator of 8 400 mm.

The open space allows the air to move freely inside the subfloor cavity. Terracotta 230mm x 150mm 6 200vent in situ. Have a look at the just for fun exercise for more details on these requirements.