Ducting for bathroom extractor fan

[edengarden]

Hi, newbie here, so hopefully I'm in the right place.

I have a single story extension with attic space that was previously used as a games room. I am soon to start converting the attic space into a new bedroom with an en-suite.

The problem I have is that the ensuite will need an extractor fan and the en-suite will be at the highest point in the attic. So should the extractor fan vent straight out through the roof (is this a leak disaster waiting to happen). Or can the ducting be run downwards towards the eves? (will this work).

I hope I have explained the situation!!

Thanks in anticipation.

Stan

 

[grahamtheplumber]

extractors can be vented through the tiles with a lead slate and a mushroom cap on the pipe,or use an inline fan and vent through the eaves.you may ned to fit a condense catching pipe if its a long run.

 

[Whitespirit66]

I usually use a Klober Universal Tile Vent. They are dead easy to fit in place of one of your tiles/slates. You will need to buy the plastic extension duct that clips onto the underside of the Klober tile, and connects to the plastic concertina duct from the extractor. The tiles are available in different colours and for slates or tiles. Looks a lot less obvious than a lead slate.

http://cgi.ebay.co.uk/roof-vent-klo...122607&cguid=ee6493ac1280a0aad3e60856fef23c54

You could vent under the eaves as well if you want to make it even neater.

 

[edengarden]

Thanks guys. The ebay link looks useful.

As for venting out of the eaves, the issue with this is that the extractor fan would be at the top of the attic space and the duct would need to travel downwards. Is this possible?

Thanks again, Stan

 

[electronicsuk]

Thanks guys. The ebay link looks useful.

As for venting out of the eaves, the issue with this is that the extractor fan would be at the top of the attic space and the duct would need to travel downwards. Is this possible?

Thanks again, Stan

It's possible, but totally pointless, and probably wont work well with typical bathroom extractor fans and their low static pressure. Far better to vent out through the slates. Less ductwork, and you'll get a much better flow rate, which of course means better extraction and less moisture.

 

[edengarden]

Thanks, so guess its out through the tiles then.

Thanks, Stan

PS: Great site - very useful.