Install a Vapor Barrier in Your St. Louis Home

Properly installed vapor barrier

If your home has a crawl space instead of a full basement, you may have excess moisture building underneath your St. Louis home. As water evaporates, it rises up through your house and too much moisture coming from your crawl space can lead to problems with:

  • Rust
  • Corrosion
  • Rot
  • Mold

You need a professional like those at Adams Foundation Repair to help you keep your home safe, clean, and dry.

Rust and Corrosion

Crawl spaces aren’t simply empty spaces beneath homes; some have HVAC equipment like ductwork or even plumbing/electrical components in them, all of which can become rusted and corroded by too much moisture in the air. Everyone knows that a rusted or corroded piece of machinery doesn’t work as good as it should, so make sure you’re checking your equipment regularly for changes. 


Excess moisture can also be devastating to:

  • Floor joists
  • Subfloor
  • Posts
  • Beams

All of these are made of wood. Everybody knows that water mixed with wood makes wood rot, and if your floors start to rot out from under you, you’ve got an expensive fix on your hands that your homeowner’s policy won’t cover.


Mold can be a big problem in damp houses, and leaving it unmitigated can cause many health problems including allergy attacks, respiratory problems, eye or skin irritation, coughing, and wheezing. Removing mold isn’t enough. Without removing the extra moisture, the mold will simply grow back over time. 

Choose A Vapor Barrier

This is where a vapor barrier can help. A vapor barrier is a sheet of plastic securely placed over the damp soil. The thicker the plastic, the more durable it will be, keeping your crawl space dry. When your crawl space is dry, your house will be too.

Vapor barriers can also help with radon mitigation. If you’ve had your home tested and you’ve found out you have a problem with radon, a good vapor barrier in your crawl space is used in conjunction with pipes and fans to suck the radon out of your crawl space to the outdoors where it can’t do you any harm.

When it comes to installing a vapor barrier, most people leave it to the professionals. Crawling around in a crawl space laying down plastic is a difficult job. It’s hard on the back and not easy if you don’t have someone helping you who knows what they’re doing. Our professional, experienced technicians can install a vapor barrier with no leaks that will not only protect your home from the damaging effects of moisture but keep your crawl space clean as well. Adams Foundation Repair can help with crawl space support. Give us a call today to get started on your crawl space and receive your free quote!

Adams Foundation Repair