DuPont™ Self-Adhered Flashing Systems Products Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed For up to 4" Recess Using Single and Double Stud Window Framing INSTALLATION GUIDELINE FOR BUILDINGS LESS THAN 5 STORIES AND LOW-RISE MULTIFAMILY RESIDENTIAL BUILDINGS LESS THAN 6 STORIES
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 selfadhered flashing solution for the inside corners of recessed integral flanged windows using DuPont™ FlexWrap™ NF and provides instructions for flashing windows when they are ins
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed Required Materials Based on Project Requirements, Details, and Specifications PRODUCT DuPont™ Tyvek® Tape DuPont™ Tyvek® Wrap Cap Fasteners or recommended fastening system DuPont™ Window & Door Foam DuPont™ Residential Sealant, or other recommended sealant* DuPont™ Adhesive/Primer Backer Rod Brushes for Surface Preparation J-Roller Apply per manufacturers’ guidelines.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed DO NOT STRETCH DuPont™ FlexWrap™ NF when installing along the length of sills or jambs. DuPont™ FlexWrap™ NF is only intended to be extended when covering corners or curved sections. DuPont™ self-adhered flashing systems products perform best when installed at temperatures above 25°F (–4°C).
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed Field Preparation of Recessed Window Corner Using DuPont™ FlexWrap™ NF The method illustrated in this bulletin uses 6" wide DuPont™ FlexWrap™ NF to fabricate a Recessed Window Corner for a recess that is up to 2" deep with double stud framing. The same method can be used for recesses greater than 2", and up to 4" deep, which requires the use of 9" DuPont™ FlexWrap™ NF.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed FABRICATE FOUR RECESSED WINDOW CORNERS A-1. Cut Four 12" Pieces of 6" DuPont™ FlexWrap™ NF A-2. Create Horizontal CREASE A. Fold FlexWrap™ NF at release paper to break perforations and create crease. NOTE: The narrow release paper will be used to guide corner fold in Step A-5. A-3. Create Vertical CREASE B. Fold FlexWrap™ NF in half, lengthwise, and create sharp crease at the fold. A-4.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed A-6. Crease Center Fold. Press firmly to create sharp crease in center and edges of fold. Sharp creases are necessary so the folds remain in the top sheet of the FlexWrap™ NF after release paper is removed.
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 B.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-3 Install DuPont™ FlexWrap™ NF Recessed Window Corner at Sill B-2 Prepare DuPont Tyvek WRB Frame for Window Installation ™ A. ® Cut two 45 degree slits extending a minimum of 8" up and away from the top corners of the rough opening. This will create a flap to expose sheathing or framing members to allow head flashing installation. B.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-4 Install DuPont™ Flashing Tape at Sill B-5 Install DuPont™ FlexWrap™ NF in Rough Opening at Sill A. Cut the DuPont™ Flashing Tape the length of the outer sill (S). Refer to Table 1 below to determine which width of DuPont™ Flashing Tape to use. A. B.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-6 Install Window A. Apply DuPont™ Residential Sealant or recommended sealant on the face of the inner recess framing at jambs and head as shown below. If sealant is applied to the sill, ensure that there are at least two (2) 2" gaps in the sealant bead for every 4‘ of window to allow for drainage. B. Install window per window manufacturer’s instructions. B A Copyright ©2016 E. I.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-7 Install DuPont™ Flashing Tape at Jambs A. Cut a piece of DuPont Flashing Tape that is 2" LONGER than the length of the outer jamb (J). B. Fold the DuPont™ Flashing Tape lengthwise using the measurements (X, Y and Z) shown in Table 2 below, creating sharp creases to help achieve sharp corners when release paper is removed. D.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-8 Install DuPont™ Flashing Tape at Head B-9 Install DuPont™ FlexWrap™ NF Recessed Window Corners at Head A. Cut a piece of DuPont™ Flashing Tape the length of the head rough opening "H". A. 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.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-10 Secure Upper Flap B-11 Seal Interior Opening A. Flip down upper flap of DuPont Tyvek WRB so it lays flat across head flashing. B. Cut ~1" strip of the DuPont™ Tyvek® WRB at lower horizontal edge of head flap. C. Continuous tape seams as shown with DuPont™ Flashing Tape. Skip-taping at head is acceptable if an air barrier is not required or if additional drainage is desired. D.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed B-12 Install and Integrate DuPont™ Tyvek® WRB A Install the DuPont™ Tyvek® WRB according to the DuPont™ Tyvek® Air- and Water-Resistive Barrier Installation Guidelines. Do not install fasteners within 8" of the rough opening along jambs and head and within 12" along the sill. Mark a perimeter box 6" away from the rough opening sill, jambs and head. C.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed Corner Release Paper Removal Guide for ALTERNATIVE METHOD described on page 8 Use the following guide to create a template to aid in removal of the release paper from the corner section only. This will assist in creating the 90° fold between the two release papers.
Installation of Integral Flanged Windows in Recessed Openings Before Water-Resistive Barrier (WRB) Is Installed Technical Specifications Note DuPont™ Tyvek® WRBs used in construction products are made from 100% flash spunbonded high density polyethylene fibers which have been bonded together by heat and pressure, without binders or fillers, into a tough durable sheet structure. Additives have been incorporated into the polyethylene to provide ultraviolet light resistance.
For more information about DuPont Weatherization Systems, please call 1-800-44-Tyvek or visit us at www.weatherization.tyvek.com Copyright © 2016 E. I. du Pont de Nemours and Company. The DuPont Oval Logo, DuPont™, Tyvek®, CommercialWrap®, FlexWrap™ NF, and StraightFlash™ are registered trademarks or trademarks of DuPont or its affiliates. All rights reserved.
