Air sealing in marine 4.
I am building a small carriage suite and admittedly haven’t gotten too deep into this as I’ve really been focused on satisfying the building department.
our local inspectors here in coastal BC expect to see an interior air barrier, typically 6mm poly. I understand this is still acceptable in colder climates, but are we really that cold in marine 4?
where we will have a heat pump with some summer cooling do we risk moisture issues? Building will have an HRV.
Am I better off to use the sealed drywall strategy? Will I, as an owner builder, be able to achieve the less than 3 ach I’m required to doing this?
if you can point me to some resources I’d be happy to dig in. Thanks.
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