Loft inline bathroom extractor fan

longwalks1

We currently have an old, wall mounted extractor fan in the bathroom but planning to replace it when we renovate the bathroom with a loft fitted, inline extractor drawing in from above the shower cubicle itself.  One reason is the current extractor isnt great and you can get a greater airflow with an inline one.  What options do we have for venting, as apparently the old houses (1930's) in our street do not have great suffit's for vents.  And we'd ideally like to avoid a roof tile vent

Grenage

What about the fascia? That's what I used at the last place.
Failing those or a gable end, a tile vent is probably best.

rob7475

We had a similar situation in our 1920’s house. The spark who fitted the initial cheap inline extractor poked the duct out of the eaves but the gap was tiny. 

When i replaced the extractor for something better, i had a tile vent fitted which is fine. The other option was having a hole in the gable end wall. 

tacpot12

If the loft mounted fan is proving difficult to install, you could look at a larger wall mounted fan than you currently have. You could go up to a 150mm fan. There are silent versions available from Xpelair and the like. It would need a larger core removing from the wall, but this might produce a better result if you don't have a gable wall close by. 

Alternatively you might be able to use some the flat trunking accessories to create a vent via the eaves. 

coffeehound

If you do go with an inline fan in the loft, be aware of potential problems with water collecting in the ducting.  It can sometimes ruin the fan or, worse, start dripping back down on you in the shower.  There is insulated ducting and condensate collectors to avoid it, though most installers wont bother.

king132

britishboy said:

We currently have an old, wall mounted extractor fan in the bathroom but planning to replace it when we renovate the bathroom with a loft fitted, inline extractor drawing in from above the shower cubicle itself.  One reason is the current extractor isnt great and you can get a greater airflow with an inline one.  What options do we have for venting, as apparently the old houses (1930's) in our street do not have great suffit's for vents.  And we'd ideally like to avoid a roof tile vent

You pretty much have 3 options:
Through Soffit/ Fascia
Through Roof
Through Brick

Belenus

^^^

In our 2004 built house the bathroom fan ducting in the loft is a flat profile with a slight downwards slope towards the eaves exit.

Presumably that slope avoids the issue of condensate water running backwards towards the fan.