GreenGuard Commercial Building Wraps - Manual (Page 10)

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B U I L D I N G W R A P A N D F L A S H I N G I N S T A L L A T I O N
7B.5 SEALING OF WINDOW HEAD
Use approved primer to seal the exposed sheathing at
the rough opening head.
7B.6 WINDOW HEAD FLASHING
Cut a piece of GreenGuard® SuperStretch™ Flashing that is at least 12 inches
longer than the width of the window opening. Make sure when installing this head
flashing to overlap the jamb flashing by at least 2 inches. Use fasteners (cap nails,
screws, or roofing nails) to ensure adequate attachment of the flashing as shown.
7B.7 SEALING OF WINDOW HEAD
Install the window in accordance with the window manufacturer’s installation
instructions. Once the window has been installed, fold down the building wrap at the
window head and seal with an additional piece of GreenGuard® Butyl Flashing at
the head. Install additional pieces of flashing to seal the angle cuts.
7B.8 SEALING BACK OF WINDOW OPENING
Seal the interior around the entire perimeter with backer rod, expanding
foam or sealant. Finish installation with the window manufacturer’s
retention clips or other fastening mechanism,
Figure 7B.5 SEALING OF WINDOW HEAD
Figure 7B.6 WINDOW HEAD FLASHING
Figure 7B.7 SEALING OF WINDOW HEAD
Figure 7B.8 SEALING BACK OF WINDOW OPENING