Building envelope / Discussions

The house we bought is like a log house (post and beam). It was insulated only on the outside with a 1 inch air gap between the wood and foam insulation. This allowed for cold air to come in easily and for a major bug infestation. We are re-doing the outside insulation. We will put soft rockwool (batten) right against ...

The builder on this 15 year old home ran the heat runs in the exterior joist space, he then insulated against the rim joist and under the heat runs, then wrapped from the mud sill to the underside of the plywood on the interior of the first joist and sealed the poly to the plywood with acoustical caulk, we will now spr...

...buildings should be as airtight as possible so you can control the air quality with your ventilation system. And all buildings should have some control layer to manage water vapor based on climate norms for their particular region. That would be an interior vapor barrier in very cold climates, an exterior vapor barrier...

...envelope and will not make it as efficient house as it can be. I'm looking for some guidance here as after hours of reading up on different options it becomes a mess. Also I'm planning to install ERV system - looking for type recommendations as well.  Thank you! Getting a home to the airtight enough to meet the require...