Interior sheathing / Green Building & Sustainable Home Renovation Information & Advice

...interior loads (appliances, lights and people) and the sun for heat. So can a house built to Net Zero Heat specs actually stay at 20°C all winter long by itself? No, it cannot. On cloudy days it could easily drop to 19, or even 18°C. When a building envelope reduces heat loss to the extent that this one does, even the ...

...interiors, the vapor drive reverses and can force moist air inwards through your insulation where it can condense on a cold and impermeable vapour barrier. Ideally we'd have no vapor barrier in summer; but short of that we should at least have one that allows as much drying to the interior as possible without sacrifici...