A.
Insert closed cell foam backer rod
into
the space around the window so there is
approximately 3/8" clearance between the
backer rod and the exterior face of the window.
Note: Backer rod adds shape and depth for
the sealant line.
x
x
B.
Apply a bead of high quality exterior grade
sealant
to the entire perimeter of the window.
Note: For wood siding applications, when using
the flexible fin, ensure the sealant bead covers the
exterior edge of the fin weather-strip.
C.
Shape, tool and clean excess sealant.
When
finished, the sealant should be the shape of
an hourglass.
INTERIOR FINISHING
If products cannot be finished immediately, cover with clear plastic to protect from
dirt, damage and moisture. Remove any construction residue before finishing. Sand
all wood surfaces lightly with 180 grit or finer sandpaper. DO NOT use steel wool. BE
CAREFUL NOT TO SCRATCH THE GLASS. Remove sanding dust.
Note: To maintain proper product performance do not paint, finish or remove the
weather-stripping, mohair dust pads, gaskets or vinyl parts. Air and water leakage
will result if these parts are removed. After finishing, allow venting windows and
doors to dry completely before closing them.
Pella Corporation is not responsible for interior paint and stain finish imperfections
for any product that is not factory-applied by Pella Corporation. Use of inappropriate
finishes, solvents, brickwash, or cleaning chemicals will cause adverse reactions with
window and door materials and voids the Limited Warranty.
For additional information on finishing see the Pella Owner's Maual or go to
www.pella.com.
7
SEALING THE WINDOW TO THE
EXTERIOR WALL CLADDING (CONTINUED)
Ř
WINDOWS
Ř
ALL
WINDOWS
Ř
ALL
WINDOWS
Ř
ALL
WINDOWS
Ř
ALL
WINDOWS
Ř
ALL
7A
7B
Note: This method creates a more flexible
sealant line capable of expanding and contracting.
