Extendable membrane for complex transitions
Key features
100% butyl adhesive non-asphaltic system
Suitable for sills, corners, and penetrations
Technical specifications
| Width | 9.0 in |
|---|---|
| Length | 900.0 in |
| Material | Micro-creped Tyvek facer with 100% butyl adhesive |
| Application area | Flashing for sills, corners, curved openings, penetrations |
Product details
Corners, sills, and irregular penetrations are where rigid flashing products often require multiple cuts, overlaps, and field improvisation. Tyvek FlexWrap NF 9 in x 75 ft is built for these high-geometry areas by allowing controlled conformability during installation.
Its flexible membrane design supports tighter wrapping at curved or complex transitions, which can reduce splice lines and help maintain continuity in the air and water control layer. In practice, this can improve repeatability for crews working on mixed opening geometries.
The listing describes a micro-creped Tyvek facer with 100% butyl adhesive, a combination commonly selected for durable bonding and non-asphaltic compatibility in WRB-adjacent details. As with all self-adhered products, substrate prep and pressure application remain decisive.
Because a fully verified official technical sheet link was not confirmed in this pass, formal project submittals should include manufacturer-approved documents before specification lock. Keep this field blank until document source and revision validity are confirmed.