Pella Typical Wood Frame Construction 801U0102 - Manual (Page 2)

E. Apply sill flashing tape #1. #UT
THAN
Note: The tape is cut 12" longer than the width so that it will extend 6" up each side of
the opening.
REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
A. Make sure the bottom of the opening is level.
Note: It is critical that the bottom is level for the window to be
installed correctly.
B. Verify the window will fit the opening. Measure all four sides of
THE
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.
C. Cut the water resistive barrier (1C). Additional cutting patterns
given below.
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.
F. Tab the sill flashing tape and fold.
CORNER
1
ROUGH OPENING PREPARATION
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Note: The flashing tape may not fully
cover the framing members.