Where the air comes in matters
An intake that sits beside a kitchen extract, a generator exhaust or a busy loading bay will deliver exactly what it is next to. Position, height and orientation are decided with the building’s other discharges in mind, not just where the duct happens to run.
- Intake louvres sized for the airflow at an acceptable face velocity
- Separation from kitchen, generator and bathroom exhaust points
- Bird and rain protection without strangling the airflow
- Filter access at the intake or unit, whichever the system uses
Ducting a fresh-air route
Fresh-air ducting is insulated and vapour-sealed because it is often the coldest duct in the building. On a Gauteng roof, an uninsulated supply run gains heat quickly, and a cold duct in a humid ceiling void will condense until the vapour barrier is continuous.
Routes are kept as direct as the structure allows, with radiused bends and sealed joints to preserve the pressure the fan was selected for.
Delivery into the space
Fresh air has to reach the people, not just the room. Diffuser positions are set so incoming air mixes without draughts over desks, and extract points are placed to draw air across the occupied zone rather than straight back out.
Included in our scope
- Intake position and louvre sizing
- Fresh-air duct routing and sizing
- Insulated duct installation and vapour sealing
- Filtration provision
- Diffuser and grille installation
- Airflow measurement at handover