Redundant bathroom air vent - To fill or not to fill?

[Sprogginz]

I have a wall vent in the bathroom that I won't need anymore and I'm wondering if I should fill the hole somehow before putting either a tile or some kind of cover over it?

There is a clay airbrick on the other side and the wall is double cavity. I don't have a diamond core to drill and replace the hole from a concrete block or similar. I could shove a couple of driveway bricks in there if both will fit!

Is it better to leave it or even fill it with expanding foam? I've also notice you can see the hole from in the attic.

Thanks.

 

[foxhole]

Why is it redundant? bathrooms need vents.

 

[Harry Bloomfield]

I have a wall vent in the bathroom that I won't need anymore and I'm wondering if I should fill the hole somehow before putting either a tile or some kind of cover over it?

Redundant why? Have you installed an extract fan? Good, controlled ventilation for a bathroom is absolutely essential to avoid mould growing and reduce humidity in the rest of the house. If you don't have a proper extract fan in the bathroom, where the hole is, is the perfect opportunity to fit one.

 

[Sprogginz]

I am installing an inline extractor instead.

Many times I have found big fat spiders coming out to play along with the whistling of Mr. Windy at other times.

Actually, I could put a 100mm pipe in there, close the end off and fill it up with (maybe this is not necessary) expanding foam before putting the tile or cover on. If for some reason I ever needed the hole again then I can just pull it out.

 

[Tigercubrider]

fit a plastic cover with a screen. choose one with a sliding vent so you can close it over.

 

[Sprogginz]

fit a plastic cover with a screen. choose one with a sliding vent so you can close it over.

Thanks, that's an idea.

The previous owner just stuck a grille over the hole using a couple of dollops of grab adhesive so looks like I'll have to drill in the tiles unless there's some form of sealant that will secure the vent in place and make it airtight?

Also, will the loss of heat and noise gain without filling the hole (and external vent) be negligible then?

Thanks.

 

[JP_]

Actually, I could put a 100mm pipe in there, close the end off and fill it up with (maybe this is not necessary) expanding foam before putting the tile or cover on. If for some reason I ever needed the hole again then I can just pull it out.

I used my vent for extractor fan, works a treat. Pipe in, flap cover on outside, files with foam.

 

[foxhole]

If it's away from the fan then it's a useful air inlet to clear the room quickly.