Description
Pressure treated plywood is engineered for enhanced resistance to fungal decay, termites, and moisture degradation.
Key Characteristics:
- Preservative Type: MCA (Micronized Copper Azole), a copper-based preservative with azole co-biocide — less corrosive and more aesthetically neutral than older treatments like CCA or ACQ
- Treatment Process: Vacuum-pressure impregnation ensures deep, uniform penetration into the wood substrate
- Substrate: Typically Southern Yellow Pine or Douglas Fir, selected for optimal absorption and structural integrity
- Adhesive: APA-rated exterior glue suitable for structural applications in wet conditions
- Surface Appearance: Light green or tan hue; smoother finish compared to ACQ-treated panels
- Corrosion Considerations: Requires corrosion-resistant fasteners — hot-dip galvanized, stainless steel, or MCA-rated hardware
- Common Uses: Sill plates and rim boards in contact with concrete or masonry, exterior wall sheathing and roof decking in humid zones, crawlspace and basement framing, decking substrates and fencing panels
- Limitations: Heavier than untreated plywood due to moisture retention, not recommended for interior finish surfaces without sealing, may require drying time before painting or sealing
Specifications
Brand
Own Brand
Category
Plywood Sheathing
Compare