The SIBER Hygro-adjustable Ventilation System is a system that allows controlled ventilation of the home. Fresh air intake is carried out through hygro-adjustable air inlets located in dry rooms (living room, dining room, bedrooms), and stale air is extracted through hygro-adjustable extraction outlets located in wet rooms (kitchen, bathrooms, toilets), achieving airflow from dry to wet zones. Air circulates within the home through passage openings located in doors or partition walls between rooms.

Air intake occurs naturally thanks to hygro-adjustable extraction outlets connected to a duct network operating under negative pressure using ventilation units, aiming to ensure good indoor air quality and energy savings.

The uniqueness of the hygro-adjustable system lies in the automatic regulation of air intake and extraction flows based on variations in indoor relative humidity and human presence detection. Air renewal is continuous, always guaranteeing a minimum ventilation flow. This variable flow ventilation system, by adjusting ventilation levels according to each room’s needs, allows for reducing the flow rates indicated in the Basic Document HS 3, resulting in energy savings.

The Technical Suitability Document (DIT) is a voluntary document issued by the Eduardo Torroja Institute of Construction Science (IETcc), containing a favorable technical assessment of the suitability of using non-traditional or innovative materials, systems, or construction methods in buildings and/or civil works.