> That’s a tall order to avoid condensation. Oh, indoor condensation absolutely will happen. Even in a new build that's up to "passive house certification" lev

> That’s a tall order to avoid condensation. Oh, indoor condensation absolutely will happen. Even in a new build that's up to "passive house certification" levels of well-insulated. You just have to design around this truth. > I don’t see how exterior flashing affects this. It’s an interior problem. It's a much bigger problem than what you're talking about. Water and moisture come between the window frame and the wall frame. > I’d rather have a comfy house with comfortable humidity, built to tolerate a comfortable humidity. But any decent wood DOES tolerate humidity. It won't if you do stupid things, like put latex paint on the interior side. The problem you'd see with wood windows not tolerating the minuscule amount of water you're mentioning with condensation is simply because someone messed something up. They built a frame out of SPF wood. They painted over it with latex. Or both. A window frame made out of any decent wood will last a century of the condensation moisture you're mentioning. I've renovated more than one century houses and I see the difference. The wood windows that rotted were either because of exterior issues, or latex paint on the interior, or wood that should simply not be used to make a window.