Tyvek® DrainWrap™

Building Solutions | Tyvek® DrainWrap™
Commercial | Residential | Multifamily | Wall

A moisture barrier proven to hold out bulk water

Made with a unique non-woven fiber structure, Tyvek® DrainWrap™ works behind claddings to channel bulk water away from the wall assembly while allowing water vapor to pass through. It also provides air resistance and structural durability during construction.


Tyvek® DrainWrap™

A vertically-grooved surface provides added protection against water, by enhancing drainage away from the wall assembly. DuPont™ Tyvek® DrainWrap™ is a moisture barrier designed to provide enhanced drainage in areas subject to extreme, wind driven rain. It combines the superior air and water resistance, vapor permeability and strength of Tyvek® with a vertically grooved surface, to help channel water safely to the outside. Available in 9- and 10-foot widge rolls.


Features & benefits

Feature Benefit
Vertical grooved surface
  • Offers enhanced drainage behind claddings
  • Channels bulk water away from wall systems
  • Allows water vapor to pass through to dry wall system
  • Helps prevent mold and water damage
  • Non-woven fiber structure
  • Prevents drafts and air movement between walls
  • Improves energy efficiency
  • Lightweight, flexible and durable
  • Stands up to rigors of job site
  • Maintains constant drainage rate, even after repeated wetting and drying cycles
  • Easy to handle and install
  • Wide roll
  • Minimizes seams
  • Helps reduce labor costs

    Physical properties

    Method Unit Value
    Air Penetration Resistance ASTM E2178 cfm/ft2 @ 1.57 psf .004
    Gurley Hill (TAPPI T-460) sec/ 100cc >300
    ASTM E1677 - Type 1
    Drainage ICC-ES AC 24 Section 6.11 - Pass
    ASTM E2273 % >98
    ICC-ES AC 235 Section 4.5 - Pass
    Water Vapor Transmission ASTM E96-00 Method A g/m2-24 hrs 250
    ASTM E96-00 Method A perms 36
    ASTM E96-00 Method B g/m2-24 hrs 350
    ASTM E96-00 Method B perms 50
    Water Penetration Resistance ATTCC 127 cm 210
    Basis Weight TAPPI T-410 oz/yd2 2.1
    Breaking Strength ASTM D882 lbs/in 30/30
    Tear Resistance (Trapezoid) ASTM D1117 lbs 7/9
    Surface Burning Characteristics ASTM E84 Flame Spread Index 5 Class A
    - Smoke Developed Index 25 Class A
    Ultra Violet Light Exposure (UV) - - 120 days (4 months)