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APPLYING INSTALLATION FINS

A.  Slide the precut bottom fin into 

the frame sill groove located on the 

bottom window frame member.

Frame 

sill groove

Frame jamb groove

Frame head groove

C

B

B

A

B.  Install the 2 precut side fins into 

the top of the frame jamb grooves 

located on the side frame members 

of the window. Slide the fins into 

place.
Note:  The side fins must overlap 

the exterior of the bottom fin.

C.  Install and slide the precut top fin 

into the frame head groove located 

in the top frame member.
Note:  The top fin must overlap 

the exterior of the side fins.

D. Seal the over-lapping fin joints with sealant.
 
  TO INSTALL THE WINDOW(S) PROCEED TO STEP 2C.

Summary of Contents for 802Q0101

Page 1: ...d 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 c...

Page 2: ...g 12 longer than the opening width Apply at the bottom of the opening as shown so it overhangs 1 to the exterior Note The tape is cut 12 longer than the width of the opening so that it will extend up...

Page 3: ...shimming and insert one roofing nail in the first hole from the corner on each end of the top nailing fin These are used to hold the window in place while shimming it plumb and square D Plumb and squ...

Page 4: ...corners of the window Note Be sure to overlap the top corners 4 INTERIOR SEAL Caution Ensure use of low pressure polyurethane window and door insulating foams and strictly follow the foam manufacturer...

Page 5: ...go This should provide at least a 1 4 clearance between the backer rod and the exterior face of the window Note Backer rod adds shape and depth for the sealant line B Apply a bead of high quality exte...

Page 6: ...to the top of the frame jamb grooves located on the side frame members of the window Slide the fins into place Note The side fins must overlap the exterior of the bottom fin C Install and slide the pr...

Page 7: ...ts in accordance with Pella installation instructions or the use of Pella products in wall systems which do not allow for proper management of moisture within the wall systems The determination of the...

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