Licensed & Insured. Crawl space Encapsulation and Mold Remediation

Crawl Space Dehumidification: A Must for a Healthy Home

Transforming your crawl space from a damp problem area into a dry, healthy part of your home begins with comprehending crawl space dehumidification. In Nashville, where battling humidity is a continuous challenge, understanding how to effectively manage moisture removal in your crawl space is paramount. 

This article delves into the essentials of maintaining a dry space beneath your home and selecting the ideal crawl space dehumidification equipment tailored to your needs. It also provides installation tips and maintenance tricks to ensure smooth operations.

Moreover, you’ll gain insights into improving overall conditions beyond mere humidity control—consider sealing vents and implementing proper insulation to address every aspect comprehensively. By the end, you’ll not only be equipped to choose and maintain a top-notch dehumidifier but also grasp its role in broader crawl space care.

Concerned about your crawl space? Let Nashville’s best assess it! Contact us now at 615-909-2879 for expert crawl space dehumidification evaluations and solutions.

Table Of Contents:

Understanding Crawl Space Dehumidification

Crawl space dehumidification isn’t merely for dryness beneath your home; it’s crucial for preserving its entire well-being. High humidity levels below your living spaces can be more than just an annoyance. 

They can lead to serious issues like mold growth, structural damage, and poor indoor air quality that could affect the well-being of everyone inside.

crawl space dehumidification

Why It Matters

The science behind controlling humidity is quite straightforward but implementing it can get tricky. Humidity loves to hang out in cool, dark places like crawl spaces. 

If not monitored, the dampness gradually deteriorates wooden frameworks, rendering them fragile as time progresses. In addition to wreaking havoc on your home’s base and architecture, surplus dampness becomes a haven for the proliferation of mold and mildew. 

Unchecked moisture not only emits a foul odor but also jeopardizes your health by polluting the air we inhale every day.

The Role of Crawl Space Dehumidifiers

A good dehumidifier works silently in the background but plays a crucial role in safeguarding both your home’s integrity and its inhabitants’ health. By pulling excess moisture from the air before it settles on surfaces or gets absorbed into materials, these devices help keep humidity levels within a healthy range.

This constant battle against dampness prevents many potential problems dead in their tracks – think of it as having an invisible shield around the lower sections of your abode. 

The EPA highlights how important managing humidity is for preventing mold—a testament to why considering crawl space dehumidification seriously matters for every homeowner with a crawl space.

Types of Crawl Space Dehumidifiers

When it comes to keeping your crawl space dry and mold-free, not all dehumidifiers are created equal. Let’s break down the different types available on the market and who they’re best suited for.

Refrigerant-Based Dehumidifiers

This type uses a refrigeration system to cool air, causing moisture to condense and collect in a container or drain away. They work best in warmer conditions since their efficiency can drop in cooler temperatures. Think of them like an AC unit that specializes in pulling water from the air rather than cooling it down.

If you live in an area with generally warm weather, this might be your go-to choice for keeping things dry under your house.

Desiccant Dehumidifiers

In contrast, desiccant models use absorbent materials to pull moisture from the air without needing to cool it first. This makes them more effective in colder environments where traditional refrigerant models struggle. Picture a giant silica gel packet working overtime under your home.

Functioning well in chillier climates, these units are perfectly suited for areas experiencing frosty winters or spaces such as basements and crawlspaces where warmth isn’t always evenly distributed.

LGR (Low Grain Refrigerant) Dehumidifiers

In the battle against stubborn dampness, LGR technology elevates the game by sucking out an impressive amount of moisture from the air, surpassing traditional methods and proving its worth in both chilly and moderate climates. 

These units are powerhouses when dealing with high humidity levels or after flooding events because they can quickly bring down moisture content below what typical units manage.

For homes prone to dampness or those recovering from water damage, LGR dehumidifiers offer fast-acting relief by rapidly reducing humidity levels back into comfortable ranges.

Key Features to Look for in a Crawl Space Dehumidifier

crawl space dehumidification

Energy Efficiency

If your crawl space dehumidifier chugs energy like a gas-guzzling SUV, it’s time to rethink your choices. Opting for an energy-efficient model not only helps the planet but also keeps your wallet from screaming every month when the electric bill arrives. Models with Energy Star ratings are usually designed to use less power while still kicking humidity to the curb.

To compare models based on their efficiency, look at their integrated energy factor (IEF) – higher numbers mean better efficiency. You can find more information about IEF and how it impacts your utility bills on Energy Star’s official website.


The size does matter when it comes to crawl space dehumidification. The capacity you need depends largely on two things: the size of your crawl space and its level of dampness. 

A pint-sized unit won’t cut it if you’re dealing with moisture down there. Determining the right capacity starts with measuring your crawl space sq ft. 

Then, consider moisture levels—are we talking about occasional puddles or a constant swamp? Units are rated by how many pints of water they can remove per day, so make sure yours is up for the challenge.

Noise Level

Your home should be a place of peace—not sound like an industrial zone because of a loud dehumidifier in the crawl space. 

Most modern units come whisper-quiet thanks to advanced technology but check decibel ratings just in case; anything under 50 dB is considered pretty silent.

Bear in mind that lower noise often correlates with higher quality—and potentially pricy—but waking up without that background hum makes all the difference.

Additional Functionalities

A good dehumidifier doesn’t stop at pulling moisture out of the air; think about extra dehumidifier features too. Auto-defrost saves you from icy buildup headaches during colder months, while built-in hygrometers keep tabs on humidity levels so you don’t have to play guesswork games anymore.

But remember—fancy dehumidifier features shouldn’t overshadow core functionality.

Key Takeaway: 

Choosing the right crawl space dehumidifier means looking at energy efficiency, capacity for your space’s size and dampness level, noise level to keep your home peaceful, and additional features that make life easier without sacrificing performance.

Installation Tips for Crawl Space Dehumidifiers

Choosing the Right Placement

Finding the sweet spot for your dehumidifier is like playing real estate in Monopoly – location matters. To kick things off, aim to place it in a central area where air can circulate freely around it. Think of this as giving your dehumidifier its own personal space bubble.

Avoid corners at all costs because they’re like the Bermuda Triangle; air goes in but doesn’t come out. If you’ve got a larger crawl space, consider using ducting options to extend the reach and improve overall efficiency.

Ducting Options Explored

If your crawl space could win an award for ‘Most Spacious’, then ducting might be right up your alley. Ducting helps distribute dry air more evenly throughout large spaces or those with awkward layouts.

You don’t need an engineering degree to get started—many systems are DIY-friendly with simple attachments that connect directly to the unit. To navigate the setup of these systems effectively, consulting the EPA’s advice on managing moisture offers invaluable insights.

Making Sure There’s Proper Airflow

Last but not least, let’s talk airflow – because what good is a high-quality dehumidifier if it’s gasping for air? Make sure there are no obstructions blocking intake or exhaust vents which would prevent effective operation.

Cleaning these areas regularly will also keep things running smoothly and efficiently over time—think of it as preventative maintenance that pays off by extending the life of your device and keeping energy costs down.

Enhancing Crawl Space Conditions Beyond Dehumidification

Sealing Vents: A Fresh Approach to Moisture Control

Sealing vents beneath your house transforms the battle against moisture, far surpassing merely barring entry to unwelcome animals. Traditionally, vents were thought to aid in air circulation but they invite moist air inside, setting the stage for mold and mildew. By sealing these vents, you’re taking a proactive step towards maintaining a dry and healthy environment underneath your home.

By not only halting the ingress of dampness but also markedly diminishing energy expenses through the equalization of substructural climates, this strategy extends its benefits beyond mere moisture control. This means less work for your HVAC system and more money in your pocket.

Laying Down Vapor Barriers: The Unsung Hero of Humidity Control

A vapor barrier might sound like something out of a sci-fi movie, but it’s essentially a plastic or foil sheet that blocks moisture from seeping up from the ground into your crawl space. Installing vapor barriers is like giving your home an impermeable cloak against unwanted dampness.

The key here is coverage and quality. Covering every inch of ground ensures no moisture escapes through cracks while opting for high-grade materials guarantees longevity. Think of it as investing in the health of your home’s foundation—quite literally laying down the groundwork for its well-being.

Incorporating Proper Insulation: Keeping It Cozy Underfoot

Last but not least, let’s talk insulation—it’s not just for walls anymore. Adding insulation to the floors above crawl spaces can keep them warm during winter months which helps reduce heating bills.

Beyond saving on utilities, proper insulation minimizes temperature fluctuations that contribute to condensation buildup—a major player in mold growth scenarios under houses.

crawl space dehumidification

Ensuring Home Health: The Essential Role of Crawl Space Dehumidification

So, you’ve dived deep into the world of crawl space dehumidification. You now know why keeping this area dry is a must for a healthy home. From understanding different types to spotting key features and tackling installation, you’re all set.

Remember, picking the right dehumidifier makes all the difference. And with proper maintenance, it’ll work wonders for years.

But don’t stop there. Enhancing your crawl space dehumidification goes beyond just controlling humidity—seal those vents and beef up insulation to lock in the benefits.

If moisture was an enemy lurking below your feet, consider yourself equipped now to keep it at bay. Crawl space dehumidification isn’t just about machinery; it’s about safeguarding your home’s health from the ground up.

From our humble beginnings to now serving the entire Nashville Metro Area, we’re committed to ensuring every home reaches the “Next Level”. Don’t compromise on quality; experience the difference with Crawlspace Makeovers.

Ready to revolutionize your crawlspace? Dial 615-909-2879 and let’s elevate your home together!

Picture of Greg Lewis

Greg Lewis

Greg Lewis is the founder and CEO of Tier Restoration, a company dedicated to restoring the indoor environment of homes and businesses experiencing water damage, smoke damage, or mold contamination.

Greg has spent most of his life working in this industry in Nashville, Tennessee, in the 1970s, working in his father’s commercial cleaning business, in the 1980s and 1990s as a partner with his father in the Sears Carpet and Duct Cleaning franchise, then on his own since 2000.

Greg played his trumpet at Overton High School and the University of Tennessee, Chattanooga, and you can still find him playing throughout the Greater Nashville, Tennessee area.