D. Install wood blocking between the top of the window and the soffit as shown. The
blocking should be flush with the exterior of the window frame.
E.Notch the retainer leg of the top and bottom frame expanders. Hold the frame expander so it is centered on the center window, and mark the frame expander at the center of the wedge that is between the windows. Cut a 1/4" wide notch out of the retainer leg to allow the frame expander to bend and attach to the flanker windows.
6E Mark frame expander at the center of the wedge
expander
Center frame expander
Notch out 1/4”
F.Apply a bead of sealant on the leg of the head frame expander and install by tapping on using a block of wood with rounded edges and a hammer.
G.Install the bottom frame expander by tapping on with a block of wood with rounded edges and a hammer.
H.Insert backer rod into the space between the jamb cover and the exterior finish material as deep as it will go. Apply a bead of high quality exterior grade sealant on top of the backer rod. Shape, tool and clean excess sealant. When finished, the sealant should be the shape of an hourglass.
Note: Backer rod adds shape and depth for the sealant line. This method creates a more flexible sealant line capable of expanding and contracting.
6H
Sealant
Backer rod 
and sealant Exterior jamb cover
Accessory groove
6D
6I
6F
6G
6I
I.Apply a corner bead of sealant across the top of the head frame expander. Shape, tool and clean excess sealant.
J.Install the interior jamb extensions (provided).
K.Install roofing material per the manufacturer’s instructions.
6J |