Specification
Project Name/Project Number/26-Aug-15  07 65 00  (Masonry Accessories) Flexible Flashing 
    DuPont™ Flashing Systems 
© 2009 DuPont. DuPont™, and all products denoted herein with ™ or ® are trademarks or registered trademarks of E.I. 
du Pont de Nemours and Company. All rights reserved. 
DuPont Building Innovations   March 2009 
4417 Lancaster Pike 
Chestnut Run Plaza 721 
Wilmington, DE 19805 
1-800-448-9835 
www.construction.TYVEK.com
Product and System Specifications 
DuPont
™
 Flashing Systems 
Specifier Note: The purpose of this guide specification is to assist the specifier in correctly specifying flexible 
flashing products and execution. The specifier needs to edit the guide specifications to fit the needs of specific 
projects. Contact a DuPont
™
 Tyvek
®
 Specialist to assist in appropriate product selections. Throughout the 
guide specification, there are Specifier Notes to assist in the editing of the file. 
References have been made within the text of the specification to CSI MasterFormat 2004 Section numbers 
and titles. The specifier needs to coordinate these numbers and titles with sections included for the specific 
project. Brackets [ ]; “AND/OR”; and “OR” have been used to indicate when a selection is required. 
This guide is for commercial flashing applications in conjunction with weather barrier assemblies. These high-
performance flashing membranes are designed to help stop the passage of bulk water and airflow movement 
and are vapor non- permeable. These commercial flashings offer protection for the building envelope by 
providing a water-resistant barrier around penetrations and rough openings. 
These commercial flashings are specifically designed for above grade, vertical wall surface openings or 
penetrations where the wall assembly may consist of any of the following: exterior-grade or glass-faced 
gypsum sheathing, exterior plywood sheathing, oriented strand board (OSB) sheathing, stud walls with no 
sheathing, and masonry wall construction. 
SECTION 07 65 00 
FLEXIBLE FLASHING 
DuPont
™
 Flashing Systems 
PART 1 – GENERAL 
1.1 SECTION INCLUDES 
A. Self-adhering flexible flashing (DuPont
™
 FlexWrap
™
, DuPont
™
 FlexWrap
™ 
NF, DuPont
™
 StraightFlash
™
, 
and DuPont
™
 StraightFlash
™
 VF.) 
B. Primers 
C. Fasteners (DuPont
™
 Tyvek
®
 Wrap Caps) 
1.2 REFERENCES 
A. ASTM International 
1.  ASTM C920; Standard Specification for Elastomeric Joint Sealants 
2.  ASTM C1193; Standard Guide for Use of Joint Sealants 








