Thermally modified porch flooring offers durability, moisture resistance, and a beautiful, natural appearance for outdoor spaces. Here’s a step-by-step guide to installing it properly for a long-lasting and appealing result:
1. Substructure Preparation
Start by preparing a sturdy and level substructure. Ensure that the joists are spaced properly, typically 16 inches on center. Thermally modified wood is stable, but having a well-supported foundation is critical to the long-term stability of the porch flooring.
2. Acclimate the Wood
Thermally modified wood needs time to acclimate to its surrounding environment. Place the wood in the installation area for 48 to 72 hours before installation. This process allows the wood to adjust to local temperature and humidity, reducing the risk of warping or buckling once installed.
3. Ventilation and Drainage
Ensure proper ventilation and drainage under the porch flooring. This allows moisture to escape and prevents mold or mildew growth. Install spacers or use furring strips to elevate the decking slightly from the substructure, allowing airflow beneath the surface.
4. Cutting and Measuring the Boards
Measure and cut the thermally modified boards to the desired length using a fine-tooth saw blade, which will help you achieve clean, smooth edges. Double-check your measurements before cutting, and leave room for slight adjustments when fitting the boards together.
5. Use Hidden Fasteners
For a clean, seamless look, use hidden fasteners designed for thermally modified wood. Hidden fasteners allow the boards to expand and contract naturally without the need for visible screws or nails, reducing the likelihood of splitting or cracking over time. Follow the manufacturer’s recommendations for the exact spacing and installation technique to ensure a secure fit.
6. Leave Expansion Gaps
Thermally modified wood has minimal expansion and contraction, but it’s still important to leave gaps between boards to allow for slight movement due to changing weather conditions. Typically, a gap of 1/8 to 1/4 inch between boards is recommended. This prevents the boards from buckling or pressing against each other as they expand.
7. Finishing Touches
After installation, applying a UV-protective sealant or finishing oil will enhance the durability and appearance of the wood. Although thermally modified wood is highly resistant to moisture and decay, a protective finish will help maintain its color and prevent graying from sun exposure. For a more rustic, weathered look, you can opt to leave the wood untreated.
8. Maintenance and Care
Thermally modified porch flooring requires minimal maintenance, but regular care can significantly extend its lifespan. Sweep the flooring regularly to remove debris, and wash it with mild soap and water a few times a year. Inspect for loose fasteners or warped boards annually and address any issues promptly to keep the deck in top shape.
Conclusion
Installing thermally modified porch flooring is a smart choice for creating a durable, attractive outdoor space. By following proper installation techniques—such as acclimating the wood, ensuring ventilation, using hidden fasteners, and leaving expansion gaps—you can enjoy a porch that looks great and withstands the elements for years. Sherwood Lumber offers top-quality thermally modified wood products to help you build the perfect porch or deck.
