Installation Guide
Copyright ©2016 E. I. du Pont de Nemours and Company. All Rights Reserved. K27349 Version 4/16 9
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
B-1 Install DuPont
™
Tyvek
®
WRB Frame Around Window Rough Opening
Installation of DuPont
™
Tyvek
®
WRB frame prior to window installation is necessary for
proper shingling and integration with the DuPont
™
Tyvek
®
WRB which will be installed
after the window (see Step B-12).
A. Cut a piece of DuPont
™
Tyvek
®
WRB that is 24” wider and 24” taller than the
window rough opening to allow a 12" width around all sides.
B. Center the piece of DuPont
™
Tyvek
®
WRB over the rough opening and fasten along
the sides and across the top using DuPont
™
Tyvek
®
Wrap Caps or recommended
fastening system. Fasteners should not be installed within 10" of the edge of the
rough opening, and no fasteners should be installed within 8" of the bottom edge
of the DuPont
™
Tyvek
®
WRB.
C. Cut an opening using an “O” cut at the perimeter of the rough opening along the
dashed indicated lines to create a DuPont
™
Tyvek
®
WRB frame around the
window. (Ensure that the DuPont
™
Tyvek
®
WRB frame is cut flush with the
sheathing and is not wrapped into the rough opening).
12”
Rough Opening
A
10”min.
10”min.
8”min.
10”min.
No Fasteners
in This Area
B
C