Passive Floor Vents

Passive ventilation uses doors windows vents louvres and other openings to bring fresh air into your home and let stale air out.

Passive floor vents.

The size and placement of these openings can be used to guide air into and through your home. Where cooling is required windows or other openings up high or on upper levels can be opened to let warm air escape. Passive roof vents expel excess heat and moisture. Based on this data the system will automatically either chose natural ventilation or mechanical ventilation depending on which system is the most optimal to use.

Like natural ventilation systems with windowmaster mixed mode ventilation systems utilize sensors to monitor indoor temperature co2 levels and humidity as well as outdoor conditions. The key is to balance incoming air with outgoing and perform an annual maintenance checkup. Recommended airflows of either 10 000mm per linear metre or 25 000mm are determined by the pitch or the design of the roof and can be easily achieved using recommended product combinations. Use this green technique to reduce kitchen humidity and warm the spare room now.

Therefore experts no longer recommend simple passive venting nor humidistat controlled venting except in special circumstances. Whilst it is possible to retrofit passive ventilation solutions to existing buildings it is highly recommended to incorporate passive ventilation during the design phase of any new building project.