ExteriorFireX CDX Plywood
ExteriorFireX CDX Plywood is an exceptional building material available in a robust 3/4″ thickness. This pressure-treated, fire-retardant plywood undergoes a kiln-drying process, enabling it to withstand harsh weather conditions and high humidity levels effectively. Manufactured by Hoover, ExteriorFireX adheres to stringent building codes, meeting the flame spread requirements with an impressive flame spread test rating of 30 minutes per ASTM E-84 (UL723) standards.
The plywood is composed of either pine or fir and is classified as graded CD, which is a sheathing grade rather than an appearance grade. This means it may contain knots and blemishes on both surfaces, emphasizing its functionality over aesthetics. Thanks to its treatment, ExteriorFireX plywood is ideal for use in interior areas where moisture levels are higher, such as bathrooms and kitchens, as well as for a variety of exterior applications. It is particularly well-suited for projects like fascia, roof sheathing, siding, stairways, and balconies.
Furthermore, ExteriorFireX is utilized by many government agencies, notably in nuclear construction and shipbuilding, owing to its durability and fire resistance. This plywood can be easily painted or stained to match your design preferences. Additionally, it is non-corrosive, free from halogens and sulfates, and may help reduce insurance rates, making it a smart choice for a wide range of construction projects.
Price: Original price was: $108.79.$71.89Current price is: $71.89.
Additional Information
Available in stock:
3/4” (23/32) thickness
Coating Exterior Fire-Retardant Plywood
- Surface Preparation:
- Clean the plywood surface thoroughly to remove any dirt, dust, or debris.
- Choose the Right Coating:
- Select a high-quality, exterior-grade paint, stain, or sealant compatible with fire-retardant plywood.
- Include a water-repellent preservative finish that is compatible iwth fire-retardant plywood to enhance moisture protection.
- Application Method:
- Apply using a brush, roller, or sprayer, ensuring an even coat.
- Use at least two coats for better durability, allowing sufficient drying time between applications.
- Weather Considerations:
- Apply in mild weather conditions, avoiding extreme temperatures and high humidity.
- Do not coat during rainy conditions or with rain expected shortly after.
- Regular Maintenance:
- Periodically inspect the coating for wear, damage, or degradation.
- Reapply as necessary to maintain protection against the elements.
Important Note on Limitations
- Exterior Grade but Not Weather-Resistant: Although fire-retardant plywood is classified as exterior grade, it is not designed for prolonged direct exposure to weather. This is because it is not treated for rot and decay.
- Essential Use of Water-Repellent Preservatives: To mitigate the risk of moisture-related issues, apply a water-repellent preservative finish that is not flammable. This protective layer is essential for maintaining the plywood’s integrity when subjected to outdoor conditions, as it helps prevent moisture penetration that could lead to rot and decay.
By following these guidelines and understanding the limitations of exterior-grade fire-retardant plywood, you can effectively protect the material while ensuring its longevity.
ExteriorFireX by Hoover Product Information Link
Plywood is on clearance. Available while supplies last.
