Ventilation for attic and storage room in super-insulated house
We are building a new highly insulated house, looking at 0.5 ACH50. The attic is part of the conditioned space, and contains HVAC mechanicals. There is also a storage room in the basement which is enclosed. Both are likely to stay closed for weeks or even months at a time.
I’m wondering if I have to take any special care to make sure these spaces do not get musty or stale or anything like that. Currently there is a low volume HVAC supply duct to the storage room, so in heating season there will be some air turnover. There isn’t any ventilation directed to the attic.
I’m installing a Zhender ERV, and I could imagine putting an exhaust duct into either space, to encourage air turnover. But then I wonder if that is wasteful and unnecessary.
How do people approach ventilating these kind of spaces? Am I just making trouble for myself? Thanks!
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