Bathroom vent cover...

[tmcb1234]

Hi,

 

Not sure how to check this but I have noticed the ceiling in our bedroom (new build) gets much colder and can feel draughts as it gets closer to where the bathroom vent cover is (it is one with flaps so should prevent backdraught). The vent is not in the attic (it is between the first and second floor) and fairly high up so difficult to access from outside. How best to check the duct is correctly sealed/secured and what should I be looking for here?

 

Thanks!

 

 

[Gav_P]

Do you mean it’s an extractor fan? And the pipe work is in the void between  the ceiling and floor above? 
 

I guess you could remove the extractor fan and try to see up into exposed area behind it? See if it’s rigid ducting or the crappy flexi-pipe stuff.

[tmcb1234]

1 hour ago, Gav_P said:

Do you mean it’s an extractor fan? And the pipe work is in the void between  the ceiling and floor above? 
 

I guess you could remove the extractor fan and try to see up into exposed area behind it? See if it’s rigid ducting or the crappy flexi-pipe stuff.

I had a look at the extractor van end (rather than the external vent - it runs a good two metres between the two) and appears to be Flexi-pipe. The pipework is in the void yes and I can feel a draught in the area directly under the vent cover (not where the actual fan is but near where it meets the external wall)

[Gav_P]

21 minutes ago, tmcb1234 said:

I had a look at the extractor van end (rather than the external vent - it runs a good two metres between the two) and appears to be Flexi-pipe. The pipework is in the void yes and I can feel a draught in the area directly under the vent cover (not where the actual fan is but near where it meets the external wall)

If it’s that flexi-pipe (like you’d see on a traditional tumble drier) then it’s crap. It has no insulating ability and being open to the outside will bring cold air in to wherever it passes though. Plus it’s probably not connected very well or at all to the exterior vent cover, which will also allow internal drafts. 
 

The vent itself, I assume has the 3 or 4 horizontal flaps that are supposed to prevent the back draft? Which are also pretty crap. 
 

Saying all this, I’m not sure what the solution is for you, without replacing it all.. eg rigid sealed ducting, decent extractor which closes, and insulation in the void around the ducting to reduce the cold getting in.