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Rough opening preparation – Pella Clad Casement & Awning Window 801P0101 User Manual

Page 2

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YOU WILL NEED TO SUPPLY:

TOOLS REQUIRED:

s

®

SmartFlash

foil backed butyl window and door

flashing tape or equivalent

s

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

s

SEALANT

SEALANT

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.

B. Verify the window will fit the opening.

Measure all four sides of the opening to make

SURE

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.

Interior

1A

Interior

1B

C. Cut the water resistive barrier

D. Fold the water resistive barrier

opening and staple to inside wall. Fold top flap up and temporarily
fasten with flashing tape.

1D

Exterior

4th cut:

Make a 6" cut up from

each top corner at a 45o

angle to allow the water

resistive barrier to be

lapped over the fin at the

head of the window.

1st cut

2nd

cut

3rd cut

Water Resistive Barrier

1C