Passive Floor Vents

A passive vent is placed in a wall or a floor enhancing air flow without burdening fuel powered ventilation systems.

Passive floor vents.

When our onsite inspection indicates a long standing moisture problem in such an area the best current advice is to stop venting the crawl space and to convert the crawl space to a dry conditioned space. Therefore experts no longer recommend simple passive venting nor humidistat controlled venting except in special circumstances. 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. Passive ventilation uses doors windows vents louvres and other openings to bring fresh air into your home and let stale air out.

Passive roof vents encourage natural air flow and work without the aid of motorized fans. 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. 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. Use this green technique to reduce kitchen humidity and warm the spare room now.

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.