Homeowners often ask if a vapor barrier is necessary for optimizing attic insulation and protecting their homes from moisture-related damage. The answer, however, isn’t one-size-fits-all.

Unfortunately, after installing a vapor barrier, you may need to replace your insulation, too, or risk trying to keep a poorly insulated house warm at great expense. Jimmy Hertilien, senior ...

Attic rain occurs when warm, moist air inside your home enters the attic space and condenses on cold surfaces, such as the ...