JELD-WEN JII011 Vinyl Windows without Nailing Fin - Manual (Page 7)

INSTALLATION INSTRUCTIONS
for Vinyl Windows without Nailing Fin (JII011)
7
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COMPLETE INSTALLATION
5
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. FINISH INSTALLATION
1. If installing a head
expander, seal
between the head
expander and the
window frame.
2. On the exterior,
apply backer rod and
sealant between the
window frame and
the rough opening.
3. If installing a sloped
sill adapter, seal the
joint between the
existing sloped sill
and sill adapter, leaving gaps at the weep holes.
AFTER INSTALLATION
• Install exterior wall surface per manufactures’ guidelines.
• Leave an expansion/contraction gap of approximately 3/8" between
window frame and final exterior wall surface (siding, stucco, etc.). For
a finished 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.
• Ensure weep holes/channels are clear of debris for proper water
drainage; do not seal weep holes/channels if present.
• If applicable, apply desired exterior vinyl trim.
• Protect recently installed units from damage from plaster, paint, etc.
by covering the unit with plastic.
Window
Frame and
Accessories
Shown
from the
Side
Head expander
Head
Seal
Interior
Sealant gap
Rough opening
Window frame
Continuous air seal
Continuous
support
Flashing
Sill
Rough
opening
Sealant
joint
Gap
Backer rod