Installation Guide

B
C
D
A
Interior
8“ Minimum
8“
Minimum
4
Copyright ©2008 E. I. du Pont de Nemours and Company. All Rights Reserved. v.2
Integral Flanged Door AFTER Water-Resistive Barrier (WRB) is Installed
Method applies to following products:
• DuPont
™
StraightFlash
™
• DuPont
™
FlexWrap
™
STEP 1
Prepare WRB for door installation:
A.Makean“I-Cut”(StandardI-Cut)intheWRB(modiedI-Cutisalsoaccepted).Foran“I-Cut”,beginwithahorizontal
cut across the bottom and the top of the door frame. From the center, cut straight down to the sill.
B. Cut two 45 degree slits a minimum of 8” from the corner of the header to create a flap above the rough opening to
expose sheathing or framing members to allow head flashing installation (see step 8).
C. Flip head flap up and temporarily secure with DuPont
™
Tyvek
®
Tape. Some doors and flashing widths may require longer
slits.
D. Fold side flaps into rough opening, cut excess flaps, and secure.
DuPont
™
Flashing Systems Installation Guidelines