Wicked Good Flashing™ is a 40-mil self-adhering flashing and transition membrane designed to create a durable, watertight barrier throughout the building envelope. Its butyl adhesive provides a strong bond to compatible substrates without requiring a primer, while the abrasion-resistant facer creates a durable surface for adhesion and jobsite exposure.

The membrane contains no asphalt, making it non-staining and suitable for use around sensitive materials. It provides strong puncture, tear, nail-sealability, heat, and weather resistance while remaining flexible and easy to install. Wicked Good Flashing can be applied in temperatures as low as 20°F and withstands temperatures up to 260°F.

Key Features

• Self-adhering butyl flashing and transition membrane
• Watertight butyl adhesive
• No primer required
• Abrasion-resistant facer
• Strong puncture and tear resistance
• Slip-resistant surface
• Excellent nail sealability
• Non-staining and asphalt free
• Flexible and easy to install
• Cold-weather adhesion down to 20°F
• Heat resistant up to 260°F
• 180-day UV resistance
• Class A fire resistant
• Health Product Declaration available

Common Applications

• Through-wall flashing
• Air-barrier transition membrane
• Roof-to-wall transition membrane
• Below-grade waterproofing transition membrane
• Curtain-wall perimeter flashing
• Parapet transition membrane
• Window and door sill pans
• Flashing and air-barrier repairs
• Temporary building dry-in

Compatible Substrates

• OSB
• Exterior gypsum
• Plywood
• Concrete
• Metal
• Air-barrier materials
• Roofing substrates
• Waterproofing systems