Installation Guide

Copyright ©2016 E. I. du Pont de Nemours and Company. All Rights Reserved. K27349 Version 4/16 14
Installation of Integral Flanged Windows in Recessed Openings
Before Water-Resistive Barrier (WRB) Is Installed
B-8 Install DuPont
™
Flashing Tape at Head
A. Cut a piece of DuPont
™
Flashing Tape the length of the head rough opening "H".
B. Fold the DuPont™ Flashing Tape lengthwise using the measurements (X, Y and Z)
determined in Step B-4, creating sharp creases to help achieve sharp corners
when release paper is removed.
C. Remove the center release paper. The center piece of the release paper can be
carefully removed by tearing along the creases, but do not cut release paper with
sharp object as this could result in damage to butyl and compromise protection
provided by the DuPont
™
Flashing Tape.
D. Adhere exposed butyl to recessed surface above window.
E. Remove the outer pieces of release paper.
F. Adhere exposed butyl over window head flange.
G. Adhere last section of exposed butyl onto exterior sheathing.
H
A. Install DuPont
™
FlexWrap
™
NF
Recessed Window Corners into the
upper corner of the window rough
opening with exposed butyl adhered
onto the window flanges in a similar
manner used for lower corner pieces
(See B-3).
B. Remove remaining release paper.
C. Adhere exposed butyl to head and
jamb surfaces of recess.
D. Fan DuPont
™
FlexWrap
™
NF
Recessed Window Corners at upper
corners onto face of wall. Coverage
of DuPont
™
FlexWrap
™
NF Recessed
Window Corners should be 2" to 3"
onto the face of the wall.
E. Place a bead of DuPont
™
Residential
Sealant or recommended sealant
inside the corner flap behind the
loose triangular flap of the corner
piece.
F. Press the loose triangular flap onto
the sealant in the corner piece.
G. Repeat Steps A-F for opposite
corner.
A
D
E
F
B-9 Install DuPont
™
FlexWrap
™
NF Recessed Window Corners at Head