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Keene Driwall CDR Vent 0.30 in. Rainscreen Drainage Mat, 50 ft Roll
Regular price $163.03Orders start at $399 — combine any items to reach the minimum. Learn more
Keene Driwall CDR Vent 0.30 in. Rainscreen Drainage Mat, 50 ft Roll
Keene Driwall CDR Vent is a 0.30-inch-thick drainage and ventilation mat that eliminates moisture and moisture vapor in roofing and siding assemblies. Made from heat-welded tangled monofilaments, it creates a clean airspace that spaces roofing or siding off the sheathing. One sell unit is a 50-foot roll installed with a mechanical staple hammer.
Key Features:
- Drain and vent: Drains excess moisture and provides ventilation in a single product.
- 0.30 in. airspace: 0.30-inch mat thickness spaces cladding away from the inner sheathing.
- Heat-welded matrix: Extruded polymer matrix of tangled monofilaments heat-welded at the junctions.
- Lightweight handling: Lightweight and easy to handle on the jobsite.
- Fast install: Simple installation with a mechanical staple hammer.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Keene |
| Sell unit | 1 roll, 50 ft |
| Product line | Keene Driwall CDR Vent |
| Material | Extruded polymer monofilament mat |
| Thickness | 0.30 in. |
| Available sizes | 50 ft roll |
| Dimensions | 0.30 in. thick, 50 ft long |
| Coverage per unit | 50 ft roll |
| Assembly | Mechanical staple hammer installation |
| Intended use | Drainage and ventilation behind cedar shingle/shake roofing and siding |
Coverage & How Much You Need:
One 50-foot roll provides 50 linear feet of drainage and ventilation mat; calculate rolls by dividing total wall or roof run by 50 and allowing for laps at joints.
Fit and Compatibility:
Designed for cedar shingle and shake roofing and siding applications where a clean airspace is needed, and for use with Keene Driwall rainscreen systems. Fasteners for the specific cladding are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 50-foot roll of Driwall CDR Vent drainage and ventilation mat.
Q: How thick is the airspace it creates?
A: The mat is 0.30 inch thick, holding roofing or siding away from the sheathing.
Q: How is it installed?
A: It installs simply with a mechanical staple hammer over the sheathing, before the cladding goes on.
Q: What is it made of?
A: An extruded polymer matrix of tangled monofilaments heat-welded at the junctions.
Q: Where is it most useful?
A: In cedar shingle/shake roofing and siding where drainage and a clean ventilated airspace are desired.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Run the mat continuously from soffit to ridge or top of wall so air and water have an uninterrupted path; butt or lap rolls per the manufacturer's guidance and seal perimeter transitions. Use CDR Vent where a ventilated cavity behind cedar is specified, and pair with proper flashing at openings. Order enough rolls to cover full runs without short piecing.
Follow local building code requirements for rainscreen drainage and use fall protection when installing on roofs or ladders.
Order Keene Driwall CDR Vent 50 ft rolls for drainage and ventilation behind cedar roofing and siding.
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