Crawl Space Encapsulation Vs. Vapor Barrier

Encapsulation Vs. Vapor Barrier

This is very common among the homeowner t stay confused about the difference between crawl space vapor barrier and encapsulation. For many they may be the same things, but with different names, while for many they can be the same as the term ‘encapsulation’ means the action of enclosing something in or as if in a capsule, which is somewhat similar to the term ‘barrier.’


To clear the fog from the topic, I’ve brought to you the detailed analysis of crawl space vapor barrier and crawl space encapsulation. The article speaks about the differences between encapsulation and vapor barrier from a neutral perspective and I’ll leave it up to you to identify the differences. So without wasting your time, let’s begin, Encapsulation Vs. Vapor Barrier.

What is Crawl Space Barrier?

This is a process of installing a black plastic with thickness of 6mm throughout your entire crawl space floor. The sheet is comprised of a foil or plastic material. Remember that the vents to your crawl space are not sealed during the process so you need not to have dehumidifier installed. Also, there’s no need to use a sump pump during the vapor barrier installation. Sump pumps may be required in various houses, depending upon the process used in installation and your crawl space.

The installation of black plastic helps prevent moisture in the dirt floor of the crawl space from evaporating.

Benefits of Crawl Space Barrier

Although we can say that the benefits of installing barrier is just like the encapsulation process. Although you don’t get enough space to store things like encapsulation, but it’s pretty good enough. It offers you with a great air quality, resulting in saving on your energy bills. According to studies, vapour barrier helps reduce 20% on your energy bills as it helps reduce humidity. Most importantly, it is much cost effective than encapsulation because it costs a quarter of the price of a full encapsulation.

What is Crawl Space Encapsulation?

This is typically a process of sealing your crawl space entirely using a white plastic sheet. The sole purpose of this method is to reduce the moisture in your crawl space and the risk of mold. With enscapulation, 100% of your crawl space is covered with white plastic and the space is cleaner than before. And, it comes with insulated foundation walls and band joist.

Unlike vapour barrier, with encapsulation, you need to install a sump pump and dehumidifier. Also, encapsulation makes for cleaner air in your crawl space and you will have ample of storage space available in your crawl space because your cral space will be totally clean.

Benefits of Crawl Space Encapsulation

The benefits of crawl space encapsulation are pretty impressive and the best one here is enough storage space because your space is clean and the air quality is another important benefit her as the studies claim that we share 40%-60% of the air we breathe, with the crawl space. So, the cleaner the crawl space, the better will be air quality in your home. Also, you can easily save 20% money on your energy bills as it helps reduce the humidity in your crawl space as well.

Which One to Choose?

We have provided a detailed analysis of the difference between the two. It is your home and your decision on which one to choose. Have a look at the benefits provided by both of them to make smarter decisions while choosing between crawl space barrier or crawl space encapsulation so you have better air quality and can save on your overall energy bills.


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