Prosoco Thru-Wall Flashing

Designed specifically to offer superior protection against punctures and tears, the product is pliable and fits endless configurations across myriad building materials, including OSB, exterior gypsum, plywood, concrete, and metals without requiring a primer.

Thru-Wall Flashing | Abrasion-Resistant Membrane with UV Protection

Thru-Wall Flashing is an extra-tough, 32-mil-thick flashing membrane engineered to provide exceptional protection against punctures, abrasion, and UV degradation. Ideal for a wide range of construction substrates, including OSB, concrete, gypsum, metal, and plywood, this peel-and-stick flashing requires no primer, saving both time and labor on the jobsite.

Product Description

Designed to protect wall penetrations and transitions, Thru-Wall Flashing incorporates a non-staining, asphalt-free acrylic adhesive for clean and reliable installations. Its superior pliability allows it to conform to complex geometries without tearing, while maintaining a durable seal for up to six months of UV exposure. The high puncture and tensile strength ratings make it an ideal choice for applications where durability and longevity are essential.

Key Benefits of Thru-Wall Flashing

  • Extra-tough 32-mil thickness for maximum durability
  • Superior puncture resistance vs. traditional membranes
  • Acrylic adhesive eliminates need for primer
  • Non-staining, asphalt-free for clean installs
  • UV protection for up to 6 months

Common Applications

  • Thru-wall and transition flashing
  • Rough openings in walls
  • Concrete, plywood, metal, OSB, and gypsum surfaces

Storage & Packaging

Available in 18-inch x 75-foot rolls. Shelf life is 1 year in a tightly sealed, unopened container.

Product Properties

Property Value
Thickness 32 mil
Puncture 400 lbf ASTM E154
Tensile 4,000 psi ASTM D412
Pliability Pass ASTM C762
Nail Sealability Pass ASTM D1970
Peel Strength 7.0 lbf ASTM D3330
Air Permeance Pass ASTM E2178
Maximum Exposure 6 months
Shelf Life 1 year in tightly sealed, unopened container
Available Sizes 18-inch x 75-foot rolls

Also see SureSpan EX for bridging high-movement joints. Visit PROSOCO for more solutions.

Technical Documents