TamlynWrap® Rainscreen 6.3 - 5' x 50' - 250 sqft/roll

TamlynWrap Rainscreen 6.3 — 3-in-1 Water Resistive Barrier with 6.3mm Drainage Gap

The TamlynWrap Rainscreen 6.3 (TWR63) is a 3-in-1 Water Resistive Barrier system engineered for professional builders and contractors who demand superior wall assembly performance. Covering 250 square feet per roll (5 ft x 50 ft), it simultaneously functions as a drainage plane, a drying system, and a construction efficiency tool. It is designed for use behind a wide range of cladding types including Stucco, Fiber Cement Board, Stone, and Metal Panels, and is compatible with OSB, coated OSB, plywood, and similar sheathing substrates.

Unlike conventional housewraps, the TWR63 uses an uncompressible 6.3mm thick filament matrix that creates a continuous air cavity between the cladding and the sheathing. This cavity eliminates the need for separate furring strips, reducing both material costs and installation liability while accelerating sheathing dry-out time and significantly extending the service life of wall assemblies.

Key Features & Benefits

3-in-1 System: WRB, Drainage Plane, and Drying Layer

The TWR63 combines three wall system functions into a single product, eliminating the need for separate drainage mats or drying layers. This integration reduces the number of components a crew must manage on site and simplifies quality control during installation.

6.3mm Uncompressible Filament Gap

The 6.3mm (1/4 inch) air cavity created by the product's filament matrix is maintained under cladding load because the filament is uncompressible. This ensures continuous drainage and airflow even after wall assembly is complete, preventing moisture from becoming trapped against the sheathing.

Acts as a Furring Strip Substitute

Because the 6.3mm filament is rigid and uncompressible, it performs the structural spacer function that furring strips normally provide. Contractors can eliminate furring strip installation in many applications, directly reducing labor time and material costs on each project.

Accelerated Sheathing Dry-Out

The continuous air gap behind the cladding allows moisture-laden air to escape rapidly, enabling OSB, plywood, and coated OSB sheathing to dry faster than with conventional wraps. Faster dry-out reduces the risk of mold, rot, and long-term structural degradation, protecting both the building and the contractor's reputation.

Enhanced Drainage Efficiency

The matrix structure of the filament layer provides a defined drainage plane that channels bulk water downward and out of the wall cavity. This is critical in high-precipitation climates or where Stucco and Fiber Cement cladding systems are used, as these materials are prone to wicking and retaining moisture.

15-Year Limited Warranty

The TWR63 carries a 15-year limited warranty covering defects in manufacturing when installed in accordance with Tamlyn's applicable installation instructions. This warranty gives contractors a credible performance assurance to present to building owners and specifiers.

UV Exposure Rated Up to 120 Days

The product is rated for up to 120 days of UV exposure prior to cladding installation, giving project teams flexibility during scheduling delays without voiding product performance or warranty coverage.

Common Applications

Stucco Cladding Systems

The 6.3mm drainage gap prevents moisture that migrates through stucco from accumulating at the sheathing face, a common failure point in stucco-clad buildings. The TWR63 provides a reliable drainage path and drying layer behind the assembly.

Fiber Cement Board Installations

Fiber cement products can absorb moisture from both sides. Installing the TWR63 behind fiber cement siding creates an air gap that allows the back face of the board to dry, reducing panel swelling, paint failure, and premature degradation.

Stone Veneer Applications

Stone veneer systems require a robust drainage plane due to their weight and the mortar systems used. The uncompressible filament layer maintains the drainage gap under the load of stone panels, ensuring long-term drainage performance.

Metal Panel Facades

Metal cladding can trap condensation on its interior face. The continuous air cavity provided by the TWR63 allows that condensation to drain and evaporate, preventing corrosion of fasteners and deterioration of the sheathing behind the panel system.

New Residential and Commercial Construction

The TWR63 is appropriate for any new wall assembly where code compliance, moisture management, and reduced callback risk are priorities. Its 3-in-1 function streamlines the wall build-up sequence for framing and sheathing crews.

Renovation and Re-Cladding Projects

When re-cladding existing buildings, the TWR63 can be applied directly over properly prepared sheathing substrates, providing a performance upgrade to the wall assembly without requiring full demolition down to the framing.

Compatible Materials

• OSB (Oriented Strand Board)
• Coated OSB
• Plywood sheathing
• Stucco cladding systems
• Fiber Cement Board siding
• Stone veneer panels
• Metal panel facade systems

Product Documents

• Installation Instructions
• Catalog Page
• Product Brochure

Application Instructions

Surface Preparation

1. Ensure sheathing substrate (OSB, coated OSB, or plywood) is properly installed, fastened, and free of major surface defects.
2. Complete all rough openings, window and door bucks, and penetrations before applying the rainscreen wrap.
3. Verify that flashing and sill pan details are in place at all openings per Tamlyn installation guidelines.

Installation

1. Begin installation at the base of the wall, working horizontally from bottom to top with appropriate overlaps per Tamlyn's installation instructions.
2. Orient the filament/gap side of the product facing outward (away from sheathing) to create the drainage cavity between the wrap and the cladding.
3. Use cap fasteners at all times as required by Tamlyn installation guidelines to prevent pull-through and maintain product integrity.
4. Lap horizontal seams a minimum amount per Tamlyn specifications; seal all seams with compatible Tamlyn XtremeSeam tape.
5. Flash all openings, penetrations, and terminations with XtremeFlashing self-adhesive tape and XtremeSealant per applicable details.
6. Limit UV exposure to a maximum of 120 days — install cladding before this threshold to maintain warranty coverage.

Warranty Registration

1. Complete the TamlynWrap Water Management System Warranty Registration form with project information.
2. Submit by fax to 281-499-8948 or by email to [email protected] to register the project for the 15-year limited warranty.

Technical Specifications

Frequently Asked Questions

Q: Does the TWR63 eliminate the need for furring strips?
A: In many applications, yes. The 6.3mm uncompressible filament acts as a spacer between the cladding and sheathing, performing the same function as a furring strip. This can reduce material and labor costs. Confirm applicability with your local code authority and Tamlyn's installation instructions for your specific cladding system.

Q: What is the maximum UV exposure before the product must be covered?
A: The TWR63 is rated for a maximum of 120 days of UV exposure. Cladding must be installed before this period expires to maintain product warranty coverage.

Q: Which side of the product faces outward during installation?
A: The filament/gap side must face outward, away from the sheathing, so the 6.3mm drainage cavity is located between the wrap and the cladding material. Follow Tamlyn's published installation instructions for full detail.

Q: What fasteners are required?
A: Tamlyn requires cap-type fasteners at all times during installation to prevent pull-through of the product. Refer to the installation instructions for fastener spacing and pattern requirements.

Q: What seam tapes and sealants are compatible with the TWR63?
A: Tamlyn's XtremeSeam tape is specified for seam sealing, XtremeFlashing tape for opening and penetration details, and XtremeSealant for sealant applications. Using compatible Tamlyn accessories is required to maintain warranty coverage.

Q: How do I register my project for the warranty?
A: Complete the TamlynWrap Water Management System Warranty Registration form — available as a PDF download above — and submit it by fax to 281-499-8948 or by email to [email protected]. Project registration is required to qualify for the 15-year limited warranty.