Keep It Dry - Crawlspace Vapor Barrier in Gettysburg, PA
A vapor barrier is one of the most important components of a dry, healthy crawlspace. Its primary job is to keep moisture from the soil from entering the crawlspace air.
How it works
Bare soil naturally contains moisture. Even when the soil doesn't look wet, water vapor can continuously migrate upward into the crawlspace. That moisture can cause several problems:
Reduces humidity
A properly installed vapor barrier covers the exposed soil and substantially limits evaporation.
Lower crawlspace humidity helps prevent condensation on pipes, ducts, joists, and other surfaces.
Helps prevent mold and wood rot
Excess moisture can create conditions conducive to mold growth.
Persistently damp wood can eventually contribute to fungal decay and structural deterioration.
Protects the home's floor system
Moisture from the crawlspace can migrate into wood floor joists and subflooring.
Keeping the crawlspace drier protects these components and can reduce musty odors in the living space.
Reduces odors
Damp soil and high humidity can produce the characteristic "musty crawlspace" smell.
Controlling the moisture source is generally more effective than simply treating the odor.
Can improve energy efficiency indirectly
A drier crawlspace can make insulation perform more consistently.
If the crawlspace is properly encapsulated and conditioned, the home's HVAC system may also have less moisture to deal with.
Mold Treatment and Vapor Barrier Installation in Gettysburg, PA
This homeowner in Gettysburg had a crawlspace with an exposed floor, meaning moisture from the ground could migrate into the flooring and living areas of the home, potentially causing mold or rot. Here are the before and after photos of the project. This barrier was an important part of the total project of keeping this home dry.
BEFORE
Crawlspace in Gettysburg, PA before mold treatment and vapor barrier installation. Signs of mold on the wood.
AFTER
Crawlspace in Gettysburg after mold treatment and vapor barrier installation.
If you or someone you love owns a home in Adams County that is in need of health and safety repairs, you may qualify for help from a grant program for those living on fixed or limited income. Visit our APPLY page to download the application to see if you qualify.