We've got an insulated house, heat it properly, ventilate it, but still see humidity levels of 70%+ in bed rooms. How to fix that? (lemmy.nz)

submitted 1 year ago by sylverstream@lemmy.nz to c/newzealand@lemmy.nz

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We built a house 7 years ago and it's insulated and has double glazing. I've installed Home Assistant with temp sensors in the bed rooms and seeing 70%+ humidity levels. Temperature is always above 16c

We ventilate it, but still it's 70% in the bedrooms. WHO recommends 40-60%, so we're a bit worried.

Living room is around 55% during the day when we have the heat pump set at 21c.

As it's pretty humid outside I think it's almost impossible to get it lower, but are there any other tips? I don't want to run dehumidifiers. Would an HRV like system help?

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[-] cloventt@lemmy.nz 0 points 1 year ago

Vapour barrier. Vapour barrier. And maybe a vapour barrier.

They're really cheap and only a little difficult to install. I've installed them in every house I've ever lived in. In our current house things dried out so much some of our floorboards warped a little. They are magic.