YOU WILL NEED TO SUPPLY:
• Impervious Shims/Spacers (12 to 20) 
• Finish nails, 1" brads
•3/16" x
•Closed cell foam backer rod/sealant backer (12 to 30 ft.)
• Pella® SmartFlash™ foil backed butyl window and door flashing tape or equivalent
• Great Stuff ™ 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 or latex foams.
• OSI Quad
(1 tube per window)
TOOLS REQUIRED:
•Tape measure 
•Level 
•Square 
•Hammer or Finish Nailer
• Stapler
• Scissors or utility knife
•Drill with a #2 Phillips (at least 4" long) and #3 square drive bit (provided in cable clamp kit) 
• 1/2" open end wrench
•3/16" wrench or socket 
•Sealant Gun 
Installation will require two or more persons for safety reasons.
LEGEND - STEPS REQUIRED OF:
ALL
REPL APPS
NEW CONST
=All applications
=Replacement applications
=New Construction applications
REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
1ROUGH OPENING PREPARATION | Water Resistive Barrier | 1C | |
1st cut |
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ALL | A. Remove all packaging from the window. | 3rd cut |
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| APPS |
| B. | REPLACEMENT APPLICATIONS: Remove the |
| REPL |
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| existing, window, trim, insulation and sealant from the |
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| opening. | |
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| CONST |
| C. NEW CONSTRUCTION APPLICATIONS: Cut the | |
| NEW |
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| water resistive barrier. Fold the side flaps into the opening |
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| and staple to inside wall. | |
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| D. Confirm the window will fit the opening. Measure all | |
| ALL |
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| four sides of the opening to make sure it is 3/4" larger | |
| ALL |
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| than the window in both width and height. Measure the |
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| width and height in several places to ensure the header | |
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| ALL |
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| and studs are not bowed. |
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| Note: | |
| ALL |
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| around the perimeter of the opening. Fix any problems | |
| ALL |
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| with the opening before proceeding. If installing new |
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| blocking, install the blocking so it’s flush with the | |
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| ALL |
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| exterior sheathing of the house. DO NOT attempt to |
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| install a window in an under size opening. | |
| ALL |
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| ALL |
| E. | Confirm the opening is plumb and level. |
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| ALL |
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| Note: It is critical the bottom is level. |
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2nd
cut
1D
1E
