Pella Double-Hung Window 802X0104 - Manual (Page 2)

REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
1
ROUGH OPENING PREPARATION
A. Verify the opening is plumb and level.
Note: It is critical that the bottom is level.
Interior
1A
Interior
1B
B. Verify the window will fit the opening. Measure all four sides of the
opening to make sure it is 3/4" larger than the window in both width
and height. On larger openings measure the width and height in several
places to ensure 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.
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C. Cut the water resistive barrier (1C).
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.
YOU WILL NEED TO SUPPLY: TOOLS REQUIRED:
s
® SmartFlash ™ foil backed butyl window and door
flashing tape or equivalent
s
(1 tube per window)
s ™ Window and Door Insulating Foam Sealant
by the Dow Chemical Company or equivalent low pressure
polyurethane window and door foam - DO NOT use high
PRESSURE
s
s
s
s
s
s
s
s
SEALANT SEALANT