When constructing a deck, it is crucial to choose connectors and fasteners with the appropriate level of corrosion resistance. This ensures the longevity and structural integrity of your deck, especially in environments prone to moisture and corrosive elements. Simpson Strong-Tie offers a variety of coatings and materials designed to meet specific corrosion resistance requirements. This blog will explore the different types of coatings, materials, and best practices for deck construction.
Understanding Corrosion and Its Impact
Environmental Factors
Deck connectors and fasteners are exposed to various environmental conditions that can accelerate corrosion, including:
- Moisture: Particularly in coastal areas or near bodies of water.
- Chemicals in Treated Wood: Certain preservatives increase corrosion rates.
- Fire Retardants: Chemicals used for fire resistance can be corrosive.
- Industrial Zones: Exposure to industrial fumes and pollutants.
- Soil and Fertilizers: Contact with soil and fertilizers introduces corrosive elements.
- Weather: Acid rain, snow, and de-icing salts can cause significant corrosion.
- Pools and Hot Tubs: Chemicals used in pools and hot tubs.
Consequences of Corrosion
Corrosion weakens the structural integrity of the deck, leading to potential safety hazards. Regular inspection and maintenance are essential to ensure the longevity of the deck structure.
Coatings and Materials for Connectors and Fasteners
Simpson Strong-Tie offers various coatings and materials for connectors and fasteners, each providing different levels of corrosion resistance.
Low Corrosion Resistance
- Gray Paint: Organic paint to protect products during warehousing and transit.
- Powder Coating: Durable baked-on paint finish.
- Galvanized Standard (G90): Zinc-galvanized coating containing 0.90 oz. of zinc per square foot.
- Bright, Hot-Dip Galvanized, Mechanically Galvanized, or Double-Barrier Coating: Standard protection for various applications.
Medium Corrosion Resistance
- Galvanized (G185): 1.85 oz. of zinc per square foot. Products with a powder-coat finish over a ZMAX® base have similar resistance.
- Hot-Dip Galvanized (HDG): Coating weight increases with material thickness, with a minimum average coating weight of 2.0 oz./ft².
- Mechanically Galvanized: Compliant with ASTM B695, Class 55.
- Quik Guard® Coating: Electroplated zinc base layer with organic top coats.
- Double-Barrier Coating: Provides corrosion protection equivalent to HDG coating.
High/Severe Corrosion Resistance
- Type 316 Stainless Steel: Nickel-chromium austenitic grade with 2-3% molybdenum, suitable for severe environments.
- Type 304/305 Stainless Steel: Nickel-chromium grades providing good corrosion resistance.
- ASTM A153, Class C: Hot-dip galvanized with a minimum average of 1.25 oz./ft² of zinc coating.
Best Practices for Selecting and Using Fasteners and Connectors
Consider the Environment
Always consider the environmental conditions where the deck will be built. Coastal areas, industrial zones, and areas with high moisture or chemical exposure require higher corrosion resistance.
Match Fasteners and Connectors
Always use stainless-steel fasteners with stainless-steel connectors to prevent galvanic corrosion. Ensure that the fasteners match the connectors’ material and finish.
Regular Maintenance
Conduct regular inspections to identify any signs of corrosion early. Timely maintenance and replacement of affected components ensure the deck remains safe and structurally sound.
Manufacturer Guidelines
Refer to the Simpson Strong-Tie Fastening Systems catalog and use the Fastener Finder software at strongtie.com/software for specific recommendations on fasteners and connectors suitable for your application.
Conclusion
Choosing the right coatings and materials for deck connectors and fasteners is essential to protect your deck from corrosion and ensure its longevity. Simpson Strong-Tie offers a range of solutions, including ZMAX® coated, hot-dip galvanized, and stainless-steel fasteners, to meet various environmental challenges. By following best practices and conducting regular maintenance, you can build a durable and safe deck.
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Contact Information:
- Phone: 1-800-792-0212
- Email: Info@AlliedEmergencyServices.com
- Location: Serving Illinois, Wisconsin, and Indiana with a focus on the greater Chicago area.
If you require immediate assistance or have specific questions, our human support is readily available to help you.
Disclaimer: This article is intended for informational purposes only. For professional advice, consult experts in the field.
