Pella 801U0103 Window User Manual


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C. Cut the water resistive barrier (1C). See page 10 for
additional cutting patterns.
D. Fold the water resistive barrier (1D). Fold side flaps into
the opening and staple to inside wall. Fold top flap up and
temporarily fasten with flashing tape.
E. Apply sill flashing tape #1. Cut a piece of flashing tape
12" longer than the opening width. Apply at the bottom of
the opening as shown (1E) so it overhangs 1" to the exterior.
Note: The tape is cut 12" longer than the width so that it will extend 6" up
each side of the opening.
F. Tab the sill flashing tape
and fold. Cut 1" wide tabs at
each corner (1/2" from each
side of corner) (1F). Fold tape
to the exterior and press
firmly to adhere it to the
water resistive barrier.
G. Apply sill flashing tape #2.
Cut a piece of flashing 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 framing (1G).
Note: The flashing tape may not fully cover the framing members.
REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
A. Make sure the bottom of the opening is level.
Note: It is critical the bottom is level for the window to be
installed correctly.
B. Confirm the window will fit in the opening. Measure all four
sides of the opening;
Standard units: Opening is to be 3/4" larger than the window
in both width and height.
Performance Upgrade and HurricaneShield: Opening is
to be 1/2" larger than the window in both width and height.
On larger openings measure the width and height in several
places to confirm the header or studs are not bowed.
Note: 1-1/2" or more of solid wood blocking is required
around the perimeter of the opening. Fix any problems
with the rough opening before proceeding.
1
ROUGH OPENING PREPARATION
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