Tyvek DrainVent Rainscreen 48 inch x 50 ft – 200 SQFT Coverage

DuPont™ Tyvek® DrainVent™ Rainscreen – 48 in x 50 ft (200 sq ft) 3D Drainage Mat

DuPont™ Tyvek® DrainVent™ Rainscreen is a three-dimensional drainage mat designed to create a dedicated drainage and ventilation space behind exterior cladding systems. Installed between the weather-resistive barrier (WRB) and the exterior finish, DrainVent™ helps manage bulk water, promote drying, and protect wall assemblies from moisture-related damage.

In simple terms: This product creates a small air gap behind siding or masonry so water can drain out and the wall can dry.

DrainVent™ features a lightweight, three-dimensional mesh structure laminated to a durable filter fabric. This design allows water to flow freely downward while helping prevent debris from blocking the drainage path. By promoting airflow and drainage, DrainVent™ supports healthier wall assemblies and longer-lasting exterior finishes.

Important Product Positioning

Tyvek® DrainVent™ is not a housewrap or WRB. It does not replace products like Tyvek® HomeWrap® or DrainWrap™. Instead, it is installed over the WRB and behind the cladding as an added drainage and ventilation layer.

Best For

• Contractors: Projects where enhanced moisture management and drainage behind cladding is required.
• Builders: Wall assemblies using stucco, stone veneer, brick, or wood siding.
• Designers & Remodelers: Applications where rainscreen principles improve durability and drying.

Key Benefits

• Dedicated drainage space: Creates a continuous drainage plane behind exterior cladding.
• Promotes drying: Helps moisture escape instead of becoming trapped in the wall assembly.
• Reduces moisture-related damage: Supports protection against rot, mold, and premature material failure.
• Lightweight & easy to install: Rolls out quickly and cuts easily on the jobsite.
• Filter fabric facing: Helps keep drainage channels clear while allowing water to pass.
• Compatible with WRB systems: Designed to work with Tyvek® WRBs and other approved weather barriers.

Typical Applications

• Behind stucco and adhered masonry veneer
• Behind stone or brick veneer systems
• Behind wood siding and panel cladding
• Wall assemblies requiring a rainscreen drainage cavity
• Projects focused on long-term moisture durability

Specifications

Installation Notes (Best Practice)

• Install over WRB: DrainVent™ is installed on top of the weather-resistive barrier.
• Provide drainage path: Ensure the bottom of the wall allows water to exit.
• Fasten per cladding system: Follow cladding manufacturer guidelines for attachment.
• Integrate details: Coordinate with flashing and trim to maintain continuous drainage.

Why It Matters

Modern wall assemblies benefit from the ability to manage and release moisture. By creating a controlled drainage and ventilation space, Tyvek® DrainVent™ helps water escape, promotes drying, and supports longer-lasting cladding and healthier wall systems—especially in high-moisture or high-risk exterior applications.

Common Questions

Q: Is Tyvek® DrainVent™ a replacement for housewrap?
A: No. DrainVent™ is installed over the WRB and behind the cladding. It works together with housewrap, not instead of it.

Q: When do I need a rainscreen product like this?
A: Rainscreen products are commonly used behind stucco, stone, brick, and wood siding, or wherever enhanced drainage and drying are desired.

Q: How is this different from Tyvek® DrainWrap™?
A: DrainWrap™ is a textured housewrap. DrainVent™ is a separate 3D drainage mat that creates a dedicated drainage cavity.