Case Studies

Crawl Space Insulation Case Studies: Mildew in Basement - Hamilton, VA

Tuesday, May 14th, 2019 by Justin Dobson


This Hamilton, VA homeowner was bothered by mildew odors in the home.  After a full comfort and energy evaluation it was determined that the humidity level in their basement/crawl space was high enough to allow mildew to grow.  Comfenergy put a prescription together to rid the basement of the mildew and make sure it would not come back.


All infected areas were first sprayed with hydrogen peroxide and other mildew cleaners/inhibitors.  Then, we worked to encapsulate the basement and separate it from the outside air allowing the humidity level to get high enough to facilitate mildew growth.  First a "dimple mat" was installed on the dirt floor to allow the Earth to dry beneath the encapsulation.  A CleanSpace 20 mil thick vapor barrier was installed on top of the dimple mat.  Clean Space has 7 layers and is thick like a pool liner so it doesn't rip or puncture.  Plus, it has anti-microbial agents built in to keep it from growing mildew.

Project Summary

Evaluator: Shayne Sandner