Are Vents Required In Bedrooms

Are Vents Required In Bedrooms

Hi CBGB,

This isn't generally recommended.
Its hard to say definitively what the effect might be for your particular house, but I note the following.

You're venting warm air out through the insulation designed to keep heat in.
You're venting moist air past the vapour check designed to keep water vapour out of the attic.

With warm moist air hitting cold air and/or cold surfaces you run the risk of having a "wet" attic.

This may cause reduced effectiveness for any quilted insulation if the water condenses on it.
It may cause risk few frost forming on the inside of the roofing felt or on objects on the attic space.

Finally it may increase the moisture content of timbers forming the roof structure, which can cause twisting and cracking in extreme cases.
It may of course result in none of the above, but its as well to be aware of the potential problems and keep an eye out for them by checking your attic occasionally. "

Thanks ONQ. The attic has insulation between rafters. THe vents from the room below is then connected to a pipe which passes through the insulation board to the soffit. Then they sealed around the hole where the pipe passes through with expandable foam. I'm not a builder and this is what I was told they did and what I can see when I go up the attic. I though this would be fine, again with my very limited knowledge on the subjest as I thought a) the pipe carries the high moisture out directly out of the attic so it wont get cooled down inside the attic and b) they sealed all around the pipe to there is no breach in the insulation.
I have to admit I am sceptical at this stage. Does this sound anyway correct or do I put it in my growing list of "dont believe them when that say..."
"

Are Vents Required In Bedrooms

Source: https://www.askaboutmoney.com/threads/what-rooms-should-ventilation-vents-be-placed-in.162163/

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