I live in an apartment (not a house) with a loft attic. It has enough space and I use it as a study room. In summer, the air is extremely hot as I walk up the steps to the attic.
Initially I was thinking to get a solar powered roof fan installed on the roof with its opening inside the attic (of course this needs strata approval), however, there is a problem: My bathroom has a hole that leads to a dome shaped skylight window and at the end of the hole, it has access to the roof cavity (the gap between the roof and the ceiling). I guess they made it that way to vent the air in the bathroom.
Now, if I install this vent in my attic, the vent sucks the air inside the flat out and as the result the replacement air will be pulled from bathroom and since it's connected to the roof cavity, the air in there will be pulled inside the flat. I already have problem with dust and dead insects coming through that hole in my bathroom, if I install the vent, this gets even worst.
So then my next thought was that, perhaps I can install the roof vent without any opening inside the unit and the opening will be inside the roof cavity. However, I'm not sure if that will be effective and if it makes any different to the current state.
So I am kind of desperate and the air in my attic is so hot and humid that makes the attic useless. I can't even use it as storage because I'm worried molds will be grow so I keep it empty during the summer. I hope I can find a solution here.
I guess there are some misunderstanding, I draw something to explain what I mean. My attic is loft so from there you can see the living room. Also there is no access from toilet to attic, it’s venting into roof cavity
So here are my questions:
- If I install the roof fan to vent the air from attic to outside, doesn’t that pull the air from the cavity via bathroom into the living area?
- If I install the roof fan to vent the air from cavity and NOT the attic, does that even help? Considering the roof is shared with another unit.
- Any other option?
P.S.: The wall on the other end of my attic is shared with the other unit, so I can't really open a hole to install an exhaust fan.