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2
PREPARING AND SETTING THE WINDOW
A. Install exterior jamb covers. Apply sealant along the leg of the jamb frame cover(s). Apply
a bead of sealant to the top corner of the bottom frame expander. Drive the short leg of the
jamb frame cover into the accessory groove using a block of wood with rounded edges and a
hammer. e notched end of the jamb cover goes toward the sill.
Sealant Bead - Along Flange
Sealant along leg of
Square Jamb Cover
Notched end of Square
Jamb Cover
Square Jamb Cover
1
ROUGH OPENING PREPARATION (CONTINUED)
J. Apply sill ashing tape #2. Cut a piece of ashing tape 12"
longer than the opening width. Apply at the bottom, overlapping
tape #1 by at least 1". DO NOT allow the tape to extend past the
interior face of the opening.
Note: e ashing tape may not fully cover the
framing members.
K. Install and level sill spacers. Place 1" wide by 3/8" thick spacers
on the bottom of the opening 1" from each side and every 16"
on center. Add shims as necessary to ensure the spacers are level.
Once level, attach spacers and shims to prevent movement.
1"
1J
1K
Angle Jamb Cover
If using Square Jamb Cover , Proceed to Step 2A.
If using Angle Jamb Cover , Proceed to Step 2B.
Square Jamb Cover
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