Specification
Project Name/Project Number/26-Aug-15 07 65 00 (Masonry Accessories) Flexible Flashing
DuPont™ Thru-Wall Flashing
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du Pont de Nemours and Company. All rights reserved.
e. Release liner: 2-part siliconized paper.
f. Dimension: [7 inches wide by 75 feet or 9 inches wide by 75 feet]
D. Performance Characteristics:
1. Water intrusion: No leakage at 75 Pa, when tested in accordance with ASTM E331.
2. Water Vapor Permeability: < 1 perm, when tested in accordance with ASTM E96.
AND/OR
C. Self-Adhering – Flexible Flashing
1. Basis of Design: Self-adhering flexible flashing membrane is based on DuPont
™
FlexWrap
™
NF.
2. Description:
a. Face Material Composition: Conformable textured polyethylene laminate barrier.
b. Face color: White.
c. Adhesive composition: Butyl adhesive
d. Thickness: 64 mil
e. Release liner: 2-part siliconized paper.
f. Dimension: [7 inches wide by 75 feet or 9 inches wide by 75 feet]
D. Performance Characteristics:
1. Water intrusion: No leakage at 75 Pa, when tested in accordance with ASTM E331.
2. Water Vapor Permeability: < 1 perm, when tested in accordance with ASTM E96.
2.3 ACCESSORIES
A. Seam Tape: DuPont
™
Tyvek
®
Tape as distributed by DuPont Building Innovations.
(Specifier Note: DELETE Description when proprietary specification for seam tape is used and can be held.)
1. Description: Pressure sensitive, polypropylene substrate with acrylic based adhesive.
B. Fasteners:
(Specifier Note: Fasteners are dependent upon substrate construction. More than one type of fastener may be
required on a single project. REVIEW construction conditions and DELETE fasteners that are unnecessary.)
1. (Specifier Note: Steel Frame Construction) DuPont
™
Tyvek
®
Wrap Cap Screws as distributed by
DuPont Building Innovations: 1-5/8 inch rust resistant screw with 2-inch diameter plastic cap or
manufacturer approved 1-1/4 or 2-inch metal gasketed washer.
AND/OR
2. (Specifier Note: Wood Frame Construction) DuPont™ Tyvek
®
Wrap Caps, as distributed by DuPont
Building Innovations: #4 nails with large 1-inch plastic cap fasteners, or 1-inch plastic cap staples
with leg length sufficient to achieve a minimum penetration of 5/8-inch into the wood stud.
AND/OR
3. (Specifier Note: Masonry Construction) Masonry tap-con fasteners with DuPont™ Tyvek
®
Wrap
Caps as distributed by DuPont Building Innovations: 2-inch diameter plastic cap fastener.
C. Sealants
(Specifier Note: Sealants compatible with weather barrier assembly may be specified in this section or in
Division 07 sealants section. DELETE paragraphs 2 and 3 when sealants are specified in Division 07.)