Bathroom Ventilation & Extractor Fans — Why They Matter
Poor ventilation is the leading cause of mould and damp in bathrooms. A correctly specified extractor fan is essential — and building regulations require one in any bathroom without an openable window.
Condensation and mould are the most common complaints we hear from homeowners after a bathroom renovation — and in almost every case, the root cause is inadequate ventilation.
Building regulations require mechanical ventilation (an extractor fan) in any bathroom that does not have an openable window. Even bathrooms with windows benefit significantly from an extractor fan, particularly in winter when windows are kept closed.
The key specification to check is the extraction rate, measured in litres per second (l/s). For a standard bathroom, a minimum of 15 l/s is required by building regulations. For a shower room or en-suite with a shower, 30 l/s is recommended.
Humidity-controlled fans — which switch on automatically when moisture levels rise — are the most effective option. They run until the humidity drops to a safe level, even after you have left the room.
IK Master Build Ltd specify and install the correct extractor fan as part of every bathroom installation. Call 07402 059 555 to discuss your bathroom ventilation requirements.