Deck Material Options

Plywood

– Dimensionally stable panels suitable for most applications

– Grade CDX or EXTERIOR rated with UV protection treatments

Oriented Strand Board (OSB)

– Resists delamination, with reinforced fiberglass matte cores

– Comparable strength at lower costs than plywood

Wood Planks

– Reclaimed timbers adding aesthetic character for certain historic restorations

– Require specialized fastening due to dimensional variability

Cementitious Wood Fiber

– Non-combustible, mold/rot-resistant alternatives to traditional wood-based options

Installation Process

Substrate Preparation

– Attachment base inspected, reinforced as needed with purlins/truss lays

– Ply clips, tape installed at seams for waterproof overlap

Decking Placement

– Alignment maintained true to framing runs, no overhanging edges

– Gaps spaced properly for expansion, installed shingle-fashion

Fastener Selection

– Corrosion-resistant nails or screws penetrating full substrate thickness

– Spacing/penetration depth customized application and code compliance

Vapor Barrier Installation

– Seamless underlayment encapsulates the deck for intrusion protection

Attachments Around Obstructions

– Fastening augmented with additional clips, adhesives by penetrations

Inspections

– Rigidity and straightness verified before proceeding to subsequent work

Reputable suppliers and trade-compliant installation methods establish a dependable, airtight foundation critical to long-term roof performance. Contact C&M today for building science-backed decking consultation and installation services.