Q: When it’s cold outside, there’s frequently condensation on windows inside my home. I wipe them down, but the moisture keeps coming back. How big a problem is this, and what can I do to prevent it?

Condensation is a cold-weather problem you notice as soon as the temperature drops. My home is prone to condensation on the inside of my single-pane windows, which also encourages mold. But ...

While a small amount of moisture isn’t unusual on frosty mornings, persistent condensation can be a nuisance, damage frames, ...