should we install an air brick?

[novice_101]

Hi,

We've recently moved into a 1930's built flat.

The one bedroom had a problem with condensation and damp. I think to overcome this, the owners decided to to install an air brick or vent. But they didn't quite finish the job and so there is now a hole in the wall (to the outside air) 25cm x 18cm in size.

I'm wondering if an air brick is necessary - and if so, how does one go about installing one? I've only seen small little plastic air bricks on sale - would this be the best option? Plastic might look a bit cheap?

Advice/ suggestions much appreciated!

Thanks

 

[JohnD]

you can buy an air brick in a builders merchant or DIY Shed. they will probably have red or buff ones to suit the colour of your bricks. you have to mortar it in. On the inside you can use a plastic vent. You do not say if you have a solid or a cavity wall.