Middle Tennessee’s climate is known for high humidity, heavy rainfall, and seasonal temperature swings—all of which can take a toll on outdoor structures like decks. Traditional wood decks are prone to warping, rotting, and mold growth in these conditions, leading to costly maintenance and repairs. That’s why many homeowners in Brentwood, Franklin, and Nolensville are making the switch to Trex decking—a durable, low-maintenance alternative that’s built to withstand Tennessee’s humid climate.
Why Does Humidity Cause Problems for Traditional Wood Decks?
Wood is a natural, porous material, meaning it absorbs moisture from the air. In humid climates like Middle Tennessee, this leads to:
✔ Swelling and warping – As wood absorbs moisture, it expands, leading to uneven surfaces and weakened boards.
✔ Mold and mildew growth – Excess moisture creates the perfect environment for mold, mildew, and algae, making decks slippery and unsightly.
✔ Cracking and splitting – When humidity levels drop, absorbed moisture evaporates, causing the wood to contract and crack over time.
✔ Frequent maintenance needs – To protect a wood deck in a humid climate, homeowners must regularly seal, stain, and clean it to prevent moisture damage.
How Trex Decking Holds Up Against Humidity
Unlike traditional wood, Trex decking is made from 95% recycled wood and plastic, creating a high-performance composite material that resists the effects of humidity and moisture.
1. Moisture Resistance: No Rot, No Mold
Trex decking is engineered with a protective shell that prevents moisture absorption, making it highly resistant to warping, swelling, and mold growth—common problems for wood decks in Tennessee’s humid climate.
2. No Splintering or Cracking
Because Trex boards don’t absorb water, they won’t expand and contract like natural wood. This means no cracking, no splintering, and no costly board replacements over time.
3. Low Maintenance: No Staining or Sealing Required
With a wood deck, you’ll need to stain and seal it every year to protect against moisture. Trex decking, however, requires only occasional cleaning with soap and water, saving homeowners time and money on maintenance.
4. Mold & Mildew Resistance
Thanks to its non-porous surface, Trex is naturally resistant to mold, mildew, and algae growth—even in Tennessee’s most humid months. This makes it safer for families and pets, reducing the risk of slippery surfaces.
5. Long-Lasting Durability in All Weather Conditions
Whether it’s the humid summers, rainy springs, or occasional winter freezes, Trex decking is built to withstand Tennessee’s climate year-round. It won’t warp, fade, or decay, ensuring a beautiful deck for decades.
Trex vs. Wood: Which One Lasts Longer in Middle Tennessee?
| Feature | Wood Decking | Trex Decking |
|---|---|---|
| Moisture Resistance | Absorbs water, leading to rot and mold | Won’t absorb moisture, resists rot and mold |
| Maintenance | Requires annual sealing and staining | No sealing or staining needed |
| Longevity | 10-15 years with high maintenance | 25+ years with minimal maintenance |
| Mold & Mildew | Common in humid climates | Resistant to mold and mildew |
| Warping & Splitting | Expands and contracts, causing cracks | No warping, cracking, or splintering |
Make the Switch to Trex with Decked Out Tennessee
If you’re tired of dealing with wood deck maintenance, warping, and mold in Tennessee’s humid climate, it’s time to upgrade to Trex composite decking. At Decked Out Tennessee, we specialize in custom Trex deck installations that offer long-lasting beauty, durability, and minimal upkeep.
📞 Ready to get started? Contact us today for a consultation and let’s design the perfect low-maintenance deck for your home!
