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D. Fold the water resistive barrier (1D). Fold side aps into
the opening and staple to inside wall. Fold top ap up and
temporarily fasten with ashing tape.
YOU WILL NEED TO SUPPLY: TOOLS REQUIRED:
• Cedar or Impervious shims/spacers (12 to 20)
• 2" galvanized roong nails (1/4 lb.)
• Closed cell foam backer rod/sealant backer (12 to 30 ft.)
• Pella
®
SmartFlash
™
foil backed butyl window and
door ashing tape or equivalent
• High quality exterior grade polyurethane or silicone
sealant (2 to 3 tubes per door)
• Great Stu
™
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
• Pella aluminum sill support or 2 x 4 wood blocking
• Interior trim and/or jamb extensions (15 to 40 ft.)
• Tape measure
• 6' Level
• Square
• Hammer
• Stapler
• Scissors or utility knife
• Screwdrivers
(#2 Phillips with 8" shaft and small at blade)
• Drill
• Sealant gun
SEALANT
SEALANT
REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
1 ROUGH OPENING PREPARATION
A. Conrm the opening is plumb and level.
Note: It is critical that the bottom is level.
In
ter
i
or
1B
Interior
1A
B. Conrm the door will t the opening. Measure all four sides
of the opening to make sure it is 3/4" larger than the door in
width and 1/2" larger in height. Measure the width at the top,
bottom, and center. Measure the height at the far left side, the
far right side, and in the center.
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.
Exterior
1D
1C
4th cut:
Make a 6” cut up from
each top corner at a 45°
angle to allow the water
resistive barrier to be
lapped over the fin at the
head of the door.
1st cut
2nd
cut
3rd cut
Water Resistive Barrier
C. Cut the water resistive barrier (1C).