Excess Moisture In Attic Space

The solution is to air seal between the attic and the heated space below.

Excess moisture in attic space.

Your problem is warm air leaking into the now cold attic. Insulation is responsible for keeping warm air inside your living space and out of the attic where it can lead to condensation. When the air is warm it holds a lot of moisture so the relative humidity was low and there was no moisture problem. In the past air leaks existed but the attic was warm because of the lack of insulation.

While many homeowners usually associate dampness with basements or crawl spaces attics can suffer from moisture problems just as easily which can lead to damaged insulation structural issues and problems with mold. If you have taken the proper steps to remove excess humid air from your home and you re still having condensation issues it might be time to check the attic insulation. Adding insulation with a built in vapor barrier is the final step in combating excess attic moisture. The key to ensuring moisture doesn t find its way into your home is by finding out where the water is.

As the moisture migrates upwards to the colder attic areas during the winter months the relative humidity is increased to the point that condensation can occur on cold surfaces. Make sure the entire floor is covered with a thick even layer of insulation labeled r 30 or higher.