Installation Guide
Copyright ©2016 E. I. du Pont de Nemours and Company. All Rights Reserved. K27349 Version 4/16 3
Installation of Integral Flanged Windows in Recessed Openings
Before Water-Resistive Barrier (WRB) Is Installed
DuPont™ Self-Adhered Flashing Systems Products – Installation
Guidelines for up to 4" Recess Using Single and Double Stud
Window Framing
This installation bulletin includes the steps required to fabricate and install a self-
adhered flashing solution for the inside corners of recessed integral flanged windows
using DuPont
™
FlexWrap
™
NF and provides instructions for flashing windows when they
are installed before the DuPont
™
Tyvek
®
WRB.
Table of Contents
Applicable Products .......................................................................................................... 3
Required Materials Based on Project Requirements, Details, and Specifications ............ 4
Warranty ........................................................................................................................... 4
General Instructions ........................................................................................................ 4
Key Installation Requirements for Drainable Window / Door Installation
Under the Limited Product and Labor Warranty ............................................................... 5
Field preparation of Recessed Window Corner using
DuPont
™
FlexWrap
™
NF ................................................................................................... 6
DuPont
™
Self-Adhered Flashing Systems Products – Installation Guidelines
for Up to 4" Recess Using Single and Double Stud Window Framing ............................. 9
Corner Release Paper Removal Guide for
ALTERNATIVE METHOD described on page 8 ............................................................... 17
Applicable Products
DuPont™ Self-Adhered Flashing Systems Products
PRODUCT WIDTH
DuPont
™
FlexWrap
™
NF 6 in
9 in
DuPont
™
StraightFlash
™
4 in
9 in
DuPont
™
Flashing Tape 4 in
6 in
9 in
12 in
Water-Resistive Barriers (WRB)
PRODUCT DIMENSIONS AREA
DuPont
™
Tyvek
®
HomeWrap
®
3 ft x 100 ft
3 ft x 165 ft
5 ft x 200 ft
9 ft x 100 ft
9 ft x 150 ft
10 ft x 100 ft
10 ft x 150 ft
300 sq ft
495 sq ft
1,000 sq ft
900 sq ft
1,350 sq ft
1,000 sq ft
1,500 sq ft
DuPont
™
Tyvek
®
StuccoWrap
®
5 ft x 200 ft 1,000 sq ft
DuPont
™
Tyvek
®
DrainWrap
™
9 ft x 125 ft
10 ft x 125 ft
1,125 sq ft
1,250 sq ft
DuPont
™
Tyvek
®
ThermaWrap
™
LE 5 ft x 150 ft
9 ft x 100 ft
750 sq ft
900 sq ft
DuPont
™
Tyvek
®
CommercialWrap
®
5 ft x 200 ft
10 ft x 125 ft
1,000 sq ft
1,250 sq ft
DuPont
™
Tyvek
®
CommercialWrap
®
D 5 ft x 200 ft
10 ft x 125 ft
1,000 sq ft
1,250 sq ft