Deck Flash DFB375 Barrier, 3 In. X 75 Ft.

Deck Flash Barrier is a self-adhesive waterproof membrane designed to protect deck joists and framing from water damage. When applied to the top of deck joists, it creates a protective barrier that prevents wood rot and decay caused by water accumulation beneath decking boards. This roll also protects metal flashing, joist hangers, deck plates, and sill plates—particularly important when working with pressure-treated lumber that can corrode metal fasteners and hardware over time.

The flexible membrane self-seals around screws and nails, blocking a primary pathway for water infiltration into the wood structure. Its textured surface provides added traction during installation and helps the adhesive grip securely. The peel-and-stick application makes installation straightforward without requiring additional fasteners.

Features and Benefits

• Self-Sealing Technology: Automatically seals around fasteners and penetrations to prevent water from working its way underneath the membrane.
• Corrosion Protection: Creates a physical barrier that prevents direct contact between treated lumber and metal components.
• Textured Surface: Improves grip during installation and provides added traction on the joist surface.
• Easy Peel-and-Stick Installation: Simple application method for straightforward deck protection projects.
• Waterproof Membrane: Blocks water accumulation and decay pathways to extend the life of deck joists and components.

Specifications

• Brand: Deck Flash
• Model: DFB375
• Width: 3 inches
• Length: 75 feet
• Surface: Textured
• Application: Peel-and-stick adhesive backing