Installation Instructions

Sealant
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INSTALLATION INSTRUCTIONS
for Vinyl Windows with Integral Nailing Fin (JII001)
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(07/14)
COMPLETE INSTALLATION
1. Release the building wrap
from above the header
(previously taped up) and
overlap the header ashing.
Seal the ends with self-
adhesive ashing or building
wrap tape.
2. Adjust window for best
operation.
3. Seal the top corners of the
window with a 1/4" bead
of sealant. Tool into a llet
shape.
CONTINUOUS AIR SEAL
Create a continuous air seal on the interior by integrating the rough
opening and the window frame with low expansion polyurethane foam
or backer rod and sealant.
AFTER INSTALLATION
• Ensure weep holes/channels are clear of debris for proper water
drainage. Do not seal weep holes/channels.
• Install exterior wall surface per manufactures’ guidelines.
• Leave an expansion/contraction gap of approximately 3/8" between
window frame and nal exterior wall surface (siding, stucco, etc.). For
a nished look and additional protection, seal this gap on the sides
with backer rod and sealant. If sealant is applied above the drip cap
ensure the sealant bead is discontinuous to allow for drainage.
• Protect recently installed units from damage from plaster, paint, etc.
by covering the unit with plastic.
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