Crawl Space Encapsulation Step 5

After you’ve completed Step 4 which was sealing your crawl space off, the next step will be making sure the air of your crawl space is conditioned.

Step 5 – Condition Crawl Space Air

In order for our previous unconditioned crawl space to become a conditioned crawl space, we must condition the air of the crawl space.

Building Code

Now that your crawl space is conditioned from the outside, building code requires us to one of three things;

  • Add air to the crawl space through your heating and cooling system
  • Use a dehumidifier
  • Or exhaust a little air from the crawl space to the outside

Out of the three options, getting a dehumidifier is going to be the best choice. Ideal humidity in the crawl space is below 50 percent and that can be tough to reach even with a sealed crawl space. The exhaust is just more problems than you want, but with a good quality crawl space dehumidifier conditioning air, you can maintain good air quality that meets the specs.

Using A Dehumidifier

By using a dehumidifier, you’ll have no problem getting your humidity below the 50 percent range. Now, dehumidifiers turn water vapor into liquid vapor, so you’ll need a drain to run it to a sump pump.

You’ll See And Feel A Big Improvement

We like giving homeowners DIY guides and information, but make no mistake, this is no easy task. Crawl space encapsulation can be tough, especially when you don’t know how to properly do it. I’ve seen many failed attempts during my career and with one problem solved, another issue comes up. If you don’t know how to do it, contact a local contractor. Contact someone that knows what they’re doing, that’s always the best route to take.

As long as you’ve properly encapsulated your crawl space, you’ll feel a big improvement. It will feel like a totally different space and in many ways, that’s what it’s going to be.

Crawl Space Encapsulation Guide

Crawl Space Encapsulation Step 1
Crawl Space Encapsulation Step 2
Crawl Space Encapsulation Step 3
Crawl Space Encapsulation Step 4
Crawl Space Encapsulation Step 5


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