"Boy, Luis, sorry to see this so late.
Curious what you did. Our general approach would be to model only the surfaces in the apartment that are adjacent to unconditioned space, so leaving off floors and walls that are adjacent to the…"
I'm not sure what the NYSERDA specifics would be, but in basic terms, a skylight is just a window in a sloped roof (typically). So picking the right frame and glazing characteristics and putting it into a sloped roof should do…"
"Exactly right, Luis.
The other unit is conditioned also, so there's negligible energy transfer between them, so the common walls don't provide a heating or cooling load, and there's no reason to enter them in the model.
This is a great question that points to a fundamental tenet of energy modeling: we don't worry about surfaces (walls, floors, etc.) where there's no energy transfer. We assume that temperatures between adjacent units (or…"
"Rick Karg, one of the developers of the ResVent app, has always been very generous with his time when enhancing the standard, and in educating the building science community on using it.
In fact, he offers a free web-based tool to do the 62.2…"
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This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. Maison Ozalée's builder, Richard Price from Construction Le Tournesol, also used triple…