Properly ventilating your property requires fresh air to be supplied and stale air to be removed, along with the moisture in the room. Mould and mildew build up over time when moisture build-up isn't addressed. We have a range of intermittent, continuous and PIV fans units that help to remove stale and damp air to minimise the chances of having a harmful internal environment.
A loft space normally does not need ventilating. A basement property falls under the same regulations as any other property as per Approved Document F.
NHBC best practice states that this should be in the corner furthest away from the door in the room, however tests have proved that air will filter to all corners of a room even if the valve is placed above the door.
