© 2012 Pella Corporation
Part Number: 802Q0102
INSTALLATION INSTRUCTIONS
SLIDING, SINGLE-HUNG and FIXED WINDOW
WITH FINS
Installation Instructions for Typical Wood Frame Construction.
These instructions were developed and tested for use with typical wood frame wall
construction in a wall system designed to manage water. These instructions are not to
be used with any other construction method. Installation instructions for use with other
construction methods or multiple units may be obtained from Pella Corporation or a local
Pella retailer. Building designs, construction methods, building materials, and site conditions
unique to your project may require an installation method different from these instructions and
additional care. Determining the appropriate installation method is the responsibility of you,
your architect, or construction professional.
YOU WILL NEED TO SUPPLY:
TOOLS REQUIRED:
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and door flashing tape or equivalent
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equivalent high quality, multi-purpose sealant
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window and door foam sealant - DO NOT use high
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Installation will require two or more persons for safety reasons.
REMEMBER TO USE APPROPRIATE
PERSONAL PROTECTIVE EQUIPMENT
Nailing Fin
Top
Flashing
Tape
Corner
Flashing
Tape
Side
Flashing
Tape
Corner
Flashing
Tape
Weep
Valves
Sill Flashing Tape #1
Sill Flashing Tape #2
Weather Resistive Barrier
Side
Flashing
Tape
Sheathing
Framing
Always read the Pella Impervia Limited Warranty before purchasing or installing
Pella Impervia products. By installing this product, you are acknowledging that this Limited
Warranty is part of the terms of the sale. Failure to comply with all Pella Impervia installation and
maintenance instructions may void your Pella Impervia product warranty. See Limited Warranty
for complete details on http://warranty.pellaimpervia.com.
2
SETTING AND FASTENING THE WINDOW
A. Install and level shims.ꢀ3ODFHꢀꢃꢇꢀZLGHꢀE\ꢀꢃꢁꢈꢇꢀWKLFNꢀVKLPVꢀ
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interior face of window. Adjust shims as necessary to ensure the
sill is level. Once level, attach shims to prevent movement.
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Note: Improper placement of shims may result in bowing
the bottom of the window.
B. Remove plastic wrap and cardboard packaging from
window. DO NOT open the window until it is fully fastened.
Note: For best results, install the window with the sash
closed and locked with the shipping spacers in place.
TWO OR MORE PEOPLE WILL BE REQUIRED
FOR THE FOLLOWING STEPS.
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Note: If fins are to be installed to no fin
units, go to the Applying Installation Fin
instructions on the back before proceeding
to step C.
C. Insert the windowꢀIURPꢀWKHꢀH[WHULRUꢀRIꢀWKHꢀEXLOGLQJꢉꢀ
Place the bottom of the window on the spacers at the
bottom of the opening, then tilt the top into position.
Center the window between the sides of the opening to
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while shimming it plumb and square.
Interior View
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D. Plumb and square window.ꢀ3ODFHꢀVKLPVꢀꢃꢇꢀIURPꢀWKHꢀ
bottom and top of the window between the window and
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interior face of window. Adjust the shims as required to
plumb and square the window in the opening. If the frame
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the window sides.
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Note: DO NOT shim above the window or in the space
between the spacers at the bottom of the window. DO
NOT over shim.
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1
E. Check the interior reveal. Make sure the measurement from
the interior face of the window to the interior face of the wall is
equal at several points around the window.
INCHES
mm 2
0
2
5
3
3
0
4
0
0
6
0
7
0
F. Fasten the window to openingꢀE\ꢀGULYLQJꢀꢄꢇꢀJDOYDQL]HGꢀ
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G. Check the window operation.ꢀ5HPRYHꢀWKHꢀSODVWLFꢀ
spacers located between the bottom of the vent panel and
the frame sill. Open and close the window a few times to
check for proper operation. Close and lock the window.
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Note: If there are any problems with the operations
of the window, recheck shim locations and adjust for
plumb and square.
INTEGRATING THE WINDOW TO THE WATER
RESISTIVE BARRIER
3
A. Apply side flashing tape. Cut two pieces of flashing
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B. Apply top flashing tape. Cut a piece of flashing tape
long enough to go across the top of the window and
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top nailing fin as shown. Fold the overlapping tape
down, and press all tape down firmly.
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Note: DO NOT tape or seal the bottom nailing fin.
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C. Fold down top flap of the water resistive barrier.
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D. Apply flashing tape to diagonal cuts. Cut pieces of
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in the water resistive barrier. Apply the tape covering
the entire diagonal cut in the water resistive barrier at
both upper corners of the window.
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Note: Be sure to overlap the top corners.
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4
INTERIOR SEAL
Caution: Ensure use of low pressure polyurethane window and door insulating foams
and strictly follow the foam manufacturer’s recommendations for application. Use
of high pressure foams or improper application of the foam may cause the window
frame to bow and hinder operation.
Interior View
A. Apply insulating foam sealant. From the interior, insert
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the space between the window and the rough opening
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IRUꢀH[SDQVLRQꢀRIꢀWKHꢀIRDPꢀDQGꢀZLOOꢀPLQLPL]HꢀVTXHH]Hꢀ
out. Apply sealant across interior surface of shims
to create a continuous seal. For windows with jamb
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the window frame and the rough opening, not between
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manufacturer's instructions.
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Note: It may be necessary to squeeze the end of the tube with pliers to be able to
insert into the space between the window frame and the rough opening. DO NOT
completely fill the space from the back of the fin to the interior face of the opening.
B. Check window operationꢀꢂYHQWꢀXQLWVꢀRQO\ꢆꢀE\ꢀRSHQLQJꢀDQGꢀFORVLQJꢀWKHꢀZLQGRZꢉ
Note: If the window does not operate correctly, check to make sure it is still plumb,
level, square and that the sides are not bowed. If adjustments are required, remove the
foam with a serrated knife. Adjust the shims, and reapply the insulating foam sealant.
SEALING THE WINDOW TO THE
EXTERIOR WALL CLADDING
When applying siding, brick veneer or other exterior finish material, leave adequate
space between the window frame and the material for sealant. Refer to the illustration
corresponding to your finish material.
5
Note: The sealant details shown are standard recommendations from the sealant industry.
Contact your sealant supplier for recommendations and instructions for these and any
other applications.
VINYL/STEEL
SIDING
WOOD
SIDING
BRICK VENEER
Backer rod
and
sealant
typical
Backer rod
and
sealant
typical
Sealant
typical
Insulate
and seal
Insulate
and seal
Insulate
and seal
1/8"
1/4"
1/4"
1/4"
min.
1/4"
min.
SOUTHWESTERN WALL
WITH STUCCO
STUCCO WITH
INSULATION BOARD
1/4"
1/4"
1/4"
min.
1/4"
min.
A. Insert closed cell foam backer rod into the space
around the window as deep as it will go. This should
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Note: Backer rod adds shape and depth for the
sealant line.
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B. Apply a bead of high quality exterior grade
sealant to the entire perimeter of the window.
C. Shape, tool and clean excess sealant. When
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Note: This method creates a more flexible sealant line capable
of expanding and contracting.
APPLYING INSTALLATION FINS
Frame head groove
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frame sill groove located on the
bottom window frame member.
B
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into the top of the frame jamb
grooves located on the side frame
members of the window. Slide the
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C
Note: The side fins must overlap
the exterior of the bottom fin.
B
Frame
sill groove
C. Install and slide the precut top
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located in the top frame member.
Note: The top fin must overlap
the exterior of the side fins.
A
Frame jamb groove
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TO INSTALL THE WINDOW(S) PROCEED TO STEP 2C.
FINISH
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that requires no painting. Clean this surface with mild soap and water. Stubborn stains and
deposits may be removed with mineral spirts. DO NOT use abrasives. DO NOT scrape or use tools
that might damage the surface.
Use of inappropriate solvents, brickwash or cleaning chemicals will cause adverse reactions with
window and door materials and voids the Limited Warranty.
CARE AND MAINTENANCE
Care and maintenance information is available by contacting your local Pella retailer. This
information is also available at www.pellaimpervia.com.
IMPORTANT NOTICE
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be designed and constructed to properly manage moisture. Pella Corporation is not responsible
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EXLOGLQJꢀGHVLJQꢋꢀFRQVWUXFWLRQꢀDQGꢀPDLQWHQDQFHꢏꢀIDLOXUHꢀWRꢀLQVWDOOꢀ3HOODp products in accordance
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for proper management of moisture within the wall systems. The determination of the suitability of
all building components, including the use of Pella products, as well as the design and installation
of flashing and sealing systems are the responsibility of the Buyer or User, the architect, contractor,
installer, or other construction professional and are not the responsibility of Pella.
Pella products should not be used in barrier wall systems which do not allow for proper
PDQDJHPHQWꢀRIꢀPRLVWXUHꢀZLWKLQꢀWKHꢀZDOOꢀV\VWHPVꢋꢀVXFKꢀDVꢀEDUULHUꢀ([WHULRUꢀ,QVXODWLRQꢀDQGꢀ)LQLVKꢀ
6\VWHPVꢋꢀꢂ(,)6ꢆꢀꢂDOVRꢀNQRZQꢀDVꢀV\QWKHWLFꢀVWXFFRꢆꢀRUꢀRWKHUꢀQRQꢎZDWHUꢀPDQDJHGꢀV\VWHPVꢉꢀ([FHSWꢀ
LQꢀWKHꢀVWDWHVꢀRIꢀ&DOLIRUQLDꢋꢀ1HZꢀ0H[LFRꢋꢀ$UL]RQDꢋꢀ1HYDGDꢋꢀ8WDKꢋꢀDQGꢀ&RORUDGRꢋꢀPella makes no
warranty of any kind and assumes no responsibility for Pella windows and doors installed
in barrier wall systems. In the states listed above, the installation of Pella products in barrier
wall or similar systems must be in accordance with Pella installation instructions.
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