Water coming through extractor fan

Kemik

Kemik

Kemik

Soldato
Joined
7 Nov 2005
Posts
4,961
Location
Widnes
Hey,

My main bathroom has an extractor fan that is vented through the ceiling and out at a 90 degree angle through the loft to outside via the side wall (rather than up and out through the roof). Sunday morning I woke up to steady dripping and a very wet bathroom floor. It looks like water has come through the side vent, through the ducting and then around the extractor fan. It hasn't come out of the extract fan itself because the ducting for that is inside a wider piece of ducting that has been stuffed with a foam. The foam got soaking wet, water carried on through the plasterboard ceiling and then dripping onto the floor.

What kind of person would I call to come and fix this? I have a new build but it's a year outside of the two year warranty. I'm going to claim it is structural but I doubt they'll agree.

No idea how so much water come through the vent... it's never happened before.
 
With the cold weather, the steam may have been condensating in the pipe and turning to water. A build up over time will then make it soak everything and pour out.

Worth maybe speaking to an electrician as they are often the people who fit these vents.

Hope this helps
 
Is the ducting insulated/under insulation? If not, it's most likely due to a build up of condensation in the ducting.

Couple of options to fix: 1. Replace the ducting with insulated ducting. 2. Move the ducting so it's under the ceiling insulation (this ensures the ducting is in the "warm" portion of the house). 3. Install a condensation trap. 4. Install the ducting in such an orientation that any condensation runs out of the external vent (but you'll get dripping from the vent).

Have you checked that the ducting is all still connected? If condensation has been building up for a while, it could have been heavy enough to pull a portion of ducting off & "dump" the water onto the ceiling.
 
The above post is very good advice and there isn’t really any more to add.

As an alternative to one or two in the post above you could insulate the current pipe by buying a roll of insulation and wrapping it around the pipe.
 
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