Can extractor fan in bathroom be vented into attic?

W

waom

Registered User
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Can an extractor fan be fitted to a bathroom and extract steam directly into the attic if it is well ventilated or will this cause condensation problems?
 
The basic answer is No. But I would not be supprised if a builder is trying to getaway doing this.
 
mechanical extract must ventilate to the open air....

extracting steam into an attic is absolute madness, youre encouraging the growth of mould and fungus and the eventual wet rot would compromise the structural integrity of the roof timbers.....
 
hey waom ,i have seen this done first hand in a block of apartments in galway city where the extracters was piped straight in too the attic.it was a disaster mould everywhere and the roof trusses and joists were soaking wet.what they did too fix it was get a vent cap on the slates or roof tiles and flexi hosed from the extractor through the attic straight up too the vent.
 
sueellen said:
Why can it not be extracted from the fan out to the gutter/eaves(?) of the house?
Click to expand...

Unfortunately the bathroom is in the middle of the house (semi-d), with skylight that is difficult to open (also lets in rain when open).
 
Folks,
I have been in a new house the last 4 years and the situation is as descriubed below, ie steeam from bathroom into fax that is going to the attic.
So from what I read here this is not a god idea; Should I try adn connect this vent to the outside?
A piece of flexi pipe to a vent on the outside of the house?
All suggestions appreciated
Tks
 

definitely

you may be able to connect it by flexi pipe to an outlet at the eaves, or even to a vent tile. [broken link removed]
 
guys you could get a hole bored on your gable wall ,from the attic through too the outside ther are companies who specialise in hole boring get out the yellow pages, then connect the extractor and the hole with a flexi hose.
 
jab1 said:
guys you could get a hole bored on your gable wall ,from the attic through too the outside ther are companies who specialise in hole boring get out the yellow pages, then connect the extractor and the hole with a flexi hose.
Click to expand...

Roof is hipped so unfortunately gable wall is not an option.

Have been told that to vent from ceiling fan to roof tile vent via flexi hose would need an extremely powerful (and noisy) fan.

Does anyone have any experience of velux operated by motor?
 

wouldnt necessarily agree.

the wind movement over the roof actually creates a 'suction' effect on the vent tile, passive stack vent work with this process. If anything you may need a less-powered fan
 
sueellen said:
Why can it not be extracted from the fan out to the gutter/eaves(?) of the house?
Click to expand...

sydthebeat said:
definitely

you may be able to connect it by flexi pipe to an outlet at the eaves, or even to a vent tile. [broken link removed]
Click to expand...


We did ours some years ago with the venting going straight to the eaves. No problems in the attic since although the noise of the fan drives me crazy. We are inclined to leave the window open as I'm a fresh air freak.

Regardless of this venting the steam still wrecks the paint.
 
I installed my ceiling fan via flexi pipe to eaves which works fine.
Only thing is there is a backdraft on occasion so I would suggest investing in a damper for the flexi pipe before installing it!
 
bren1916 said:
I installed my ceiling fan via flexi pipe to eaves which works fine.
Only thing is there is a backdraft on occasion so I would suggest investing in a damper for the flexi pipe before installing it!
Click to expand...

What are "the eaves"? Does it refer to Fascia/Soffit?
 
waom said:
What are "the eaves"? Does it refer to Fascia/Soffit?
Click to expand...

Yes it does sorry - I placed the grill directly above the bathroom window thru the soffit which was the handiest and shortest route possible.
 
Hi there

I came across this post just today. I also have an extractor fan that feeds into the attic and does not go outside. The house is 10 years old and the ensuite (where the extractor feeds from) is used at least twice a day for showers. It worries me that the attic could be being damaged.

Who would I get to repair this and feed the extractor outside? Builder, plumber, electrician? I'm really not sure who to contact.

Any thoughts appreciated.
 

anyone handy at diy...
theres many available these days...
 
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