Ventilation through garage stud walls

[highmcdiy]

Do you think I should just finish the insulation with the PR boards and just put in an extraction fan on the roof then?

 

[^woody^]

If you are minded to fit a fan, a wall fan has less risk than a roof fan.

 

[highmcdiy]

Thanks Woody, I will just go for it tomorrow and constantly monitor humidity levels.

 

[robinbanks]

I don't get it; why would you create an insulated box that you then ventilate in an uncontrolled fashion such that it sits at ambient outside temp?

 

[highmcdiy]

I don't get it; why would you create an insulated box that you then ventilate in an uncontrolled fashion such that it sits at ambient outside temp?

The goal is to keep the garage at an ambient temperature and reduce humidity.

The humidity in my area is very high so there is a chance the humidity will rise in the garage.

The garage has two up and over doors so some air will get in there.

There are 4 airbricks letting loads of humid, cold air into the garage at the moment.

I have build stud walls filled with PIR at this point.

What would you suggest to meet the goals?

 

[robinbanks]

If you're not heating the garage, seal it up as best you can and run a dehumidifer in it in target RH mode

 

[highmcdiy]

One of the aims is to keep it heated though. Only at around 15 degrees though.

The temperature currently goes down to around freezing.

 

[big-all]

One of the aims is to keep it heated though. Only at around 15 degrees though.

The temperature currently goes down to around freezing.

way too high it will cost you a fortune
i would go for say 5 degrees to give frost protection to save glues paints and other cold sensitive items

 

[highmcdiy]

Will see what it's like once I get it insulated I guess. I have a remote monitor so will see when the heater comes on

 

[robinbanks]

way too high it will cost you a fortune

Sufficiently insulated it won't cost much, but from the description in the initial post I doubt the insulation is there yet