Shower ventilation and condensation getting trapped.

[TheOriginalTableLeg]

I had been looking at fitting a roof ventilation tile in order to vent bathroom condensation in place of the current setup.

Currently I have a 4" Centrifugal fan connected via flexible ventilation hose to a vent on the outside wall (all in the loft).

I wondered if it would easier (and cheaper as opposed to the roof tile) to replace the flexible hose with rigid pipe instead. The issue I can see is that I cannot seem to find any 45deg elbows to allow a drop to the vent.

The vent is approx. 3m from the fan.

I have looked on TLC direct and can see the pipe but no 45deg elbows.

Any idea's?

Thanks in advance.

 

[Burnerman]

Presumably the fan is in the bathroom ceiling......a flexible duct will work fine so long as it is supported and has no areas of sag where condensation can collect.
Personally I go through a wall rather than pierce the roof shell if I can.
Your solid duct pipe will also work, and you can use the flexible stuff as elbows.
The extractor duct may benefit from lagging if your loft is particularly cold and draughty.
John

 

[TheOriginalTableLeg]

Presumably the fan is in the bathroom ceiling......a flexible duct will work fine so long as it is supported and has no areas of sag where condensation can collect.
Personally I go through a wall rather than pierce the roof shell if I can.
Your solid duct pipe will also work, and you can use the flexible stuff as elbows.
The extractor duct may benefit from lagging if your loft is particularly cold and draughty.
John

Thanks for the reply .

The fan is in the loft (its a bungalow). The vent hose as it was used to just end up sagging due to condensation getting trapped, which then pulled that section down more causing more condensation to become trapped.

I will definitely look at maybe running the full length in the rigid pipe as close to the end as possible but I thought I might use a small 22mm take off at the end lowest section to drain off any condensation collecting like this one I saw in TLC http://www.tlc-direct.co.uk/Products/BGCT.html

And also try and insulate the pipework as well.

Any other thoughts? Does this sound like a good idea?