In the construction of a resilient building envelope, precise moisture management is critical, especially around openings and transitions. LeakBarrier 25RA, available from A1A Wholesale Supply, is engineered to meet this challenge, providing unwavering protection against moisture and vapor.
This product is a premium-grade, specially formulated SBS self-adhered flashing membrane with a 25-mil thickness. Its primary design is for vertical walls and other non-roofing applications, making it a versatile option for numerous design details.
Key Features and Benefits for Contractors:
- Durable Defense: The 25-mil thickness provides exceptional tear and puncture resistance, ensuring long-lasting protection against the elements.
- Self-Adhering: The adhesive backing simplifies installation by eliminating the need for additional adhesives or fasteners.
- Self-Sealing: Effectively self-seals around fasteners, preventing moisture penetration and maintaining the integrity of the barrier.
- Watertight Seal: Creates a secure and waterproof barrier around joints, seams, and penetrations, actively preventing water infiltration.
- Versatile Application: Ideal for a wide array of non-roofing applications, including:
- Window and door openings
- Inside and outside corners of sheathing
- Electrical and plumbing penetrations
- Wall-to-wall tie-ins
- Deck-to-side wall transitions
- Behind stone and masonry walls
- Sheathing panel seams
- Foundation sill plates
- Behind stucco finishes
Installation Considerations:
- LeakBarrier 25RA is suitable for vertical or sloped wall installations.
- Avoid using fasteners in sloped installations.
- Promptly cover the product after installation.
- Before and after installation, inspect the product thoroughly to ensure it is free from any protrusions or damage that could compromise its moisture-resisting properties.
- Compatibility: LeakBarrier 25RA is not compatible with EPDM or flexible (plasticized) Polyvinyl Chloride (PVC) based products.
- Some sealants may not be compatible; consult the sealant manufacturer for compatibility information.
- Avoid direct exposure of sealant to the adhesive side of LeakBarrier 25RA.
- Ensure the amount of sealant used adheres to specified guidelines, as excessive sealant use is discouraged.
Warranty: LeakBarrier 25RA is warranted to be free from manufacturer’s defects






