Why You Need a Vapor Barrier in Your Crawl Space

crawl space dehumidifier

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If you own a home, chances are you have a crawl space. If so, you should be aware of the importance of having a vapor barrier in your crawl space. A vapor barrier is a sheet of plastic or a specialized material that helps to prevent moisture from entering the crawl space and damaging the structure of your home. This blog post will explain why you need a vapor barrier in your crawl space and how it can help protect your home.

What is a vapor barrier?

A vapor barrier is a thick plastic sheet placed in a home’s crawl space. It is designed to act as a preventative measure against moisture and dampness entering the crawl space. Vapor barriers come in various thicknesses, but 6 mils are usually recommended. It provides a physical barrier between the soil and the underside of the floor, preventing moisture and dampness from seeping up from underneath. Installing a vapor barrier can help protect your home from mold growth, wood rot, and other damage due to moisture and humidity.

What are the benefits of a vapor barrier?

Vapor barriers are designed to keep the moisture levels in your crawl space low and prevent these problems from occurring. They do this by creating a barrier between the air beneath your home and the air outside, stopping the water vapor from passing through.

You can maintain a consistent humidity level in your crawl space, preventing mildew and mold. This helps to protect the structural integrity of your home and ensures the safety of any living areas connected to the crawl space.

Additionally, with a properly installed vapor barrier, oxidation processes can be slowed or stopped entirely, allowing you to rest easily so that your metal parts are safe from rusting. 

Finally, installing a vapor barrier can help keep your energy bills down. Since it’s another layer of insulation, it will help retain heat within your home during the winter months, reduce your energy bills, and help you save money.

How do I install a vapor barrier in my crawl space?

Installing a vapor barrier in your crawl space is essential to keep the area moisture-free and healthy. To get started, a professional must assess the area beneath your home to ensure the proper layout and installation of the poly sheeting. This includes removing any debris and grading the surface to a flat base. After measurements are taken and obstacles are accounted for, the sheet can be cut to size and laid down as tightly as possible. The final step is installing the sheet using stainless steel staples and buttons to prevent tearing. With the help of a trained professional, this task is well worth it for the benefits a vapor barrier can provide.

Is there maintenance associated with a vapor barrier?

The answer is yes, although the maintenance isn’t overly intensive. For the most part, a vapor barrier will last for years, but you should still do an annual inspection during the dry season to check for any signs of damage or rot in your home’s subflooring and supports. If anything looks out of place or torn, seek to get it repaired immediately. As long as you keep an eye on it here and there, your vapor barrier should continue to provide effective protection.

How To Get Started

If your home has a dirt-floored crawl space, then you should consider having a vapor barrier installed to protect your home from potential moisture damage. While the average DIY-minded homeowner can install a vapor barrier, it’s essential to recognize that proper experience and attention to detail are required.

To have Zhe Industries come and professionally install your vapor barrier, contact us or call 757-759-5466 today. This proactive step can save you a lot of money in the long run by preventing potential moisture damage in your crawl space. 

Don’t delay – get a vapor barrier installed as soon as possible.